U.  S.  LIGHT-HOUSE  ESTABLISHHENT. 


CONTRACT 


FOR 


CONSTRUCTION   OF   CONCRETE&SASE 

FOR  LIGHT  AND  FOG-SIGNAL  STATIOI&?°PN 

MILE  ROCK,         a*/0 


AT 


ENTRANCE  TO  SAN   FRANCISCO  HARBOR, 
CALIFORNIA. 


re  37-s" 


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UNIVERSITY  OF  CALIFORNIA 
DEPARTMCNT  OF  CIVIL  ENGINEERING 

BERKELEY*  CALIFORNIA 


ADVERTISEMENT. 


OFFICE  OF  U.  S.  LIGHT-HOUSE  ENGINEEK, 

TWELFTH  DISTEICT,  Eoom  91,  Flood  Building. 

SAN  FHANCISCO,  CAL.,  April ,  1904. 

SEALED  proposals  will  be  received  at  this  office  until  12  o'clock,  noon,  Standard  time,  on — , 

May  ,  1904,  and  then  publicly  opened,  for  the  construction  of  the  concrete  base  of  the  light  and  fog-signal 

station  to  be  erected  on  Mile  Rock,  entrance  to  San  Francisco  Harbor,  Cal. 

Plans  and  specifications,  together  with  forms  of  proposal  and  all  other  necessary  information,  may  be  obtained 
on  application  to  this  office. 

The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  informalities. 

THOS.    H.    HANDBURY, 
Lieut.  Col.,  Corps  of  Engineers,  U.  S.  A.,  Engineer  12th  Light-House  District. 


(3) 


SPECIFICATIONS. 


INFORMATION. 

The  object  of  the  contract  to  be  entered  into  under  these  specifications  is  to  construct  the  concrete  base  or 
pillar  of  a  light  and  fog-signal  station,  to  be  erected  on  Mile  Eock,  entrance  to  San  Francisco  Harbor,  Cal.  This 
station  is  to  consist  of  a  monolith  concrete  base,  enclosed  by  steel  plates,  resting  on  the  rock  at  the  level  of  mean 
high  water.  This  monolith  is  to  be  34  feet  high,  and  will  cover  an  area  of  704  square  feet.  On  the  top  of  this 
there  will  be  a  four-story  tower  made  of  structural  steel,  and  surmounted  by  a  lantern.  The  station  will  be  provided 
with  machinery,  in  duplicate,  for  a  10-inch  fog  whistle,  to  be  operated  by  compressed  air.  The  motive  power  of  the 
compression  machinery  will  be  some  form  of  mineral  oil  engine.  Accommodations  are  to  be  provided  for  three 
keepers.  The  focal  plane  of  the  light  will  be  84  feet  3  inches  above  the  datum  plane,  which  is  at  the  mean  of 
lower  low  water. 

LOCATION. — Mile  Eock  is  about  one  half  a  mile  inside  a  line  joining  the  outer  heads  of  San  Francisco 
Harbor,  and  three  eighths  of  a  mile  from  the  nearest  point  on  the  south  shore.  It  rises  nearly  vertical  out  of  the 
water,  which  is  from  forty  to  fifty  feet  deep.  It  has  an  area  at  the  level  of  mean  high  water  of  about  1,000  square 
feet,  and  its  highest  point  is  sixteen  feet  above  datum  plane. 

About  one  hundred  and  sixty  feet  from  the  rock,  on  the  inshore  side,  there  is  another  smaller  rock  extending 
above  high  water,  which  may  be  found  useful  in  the  course  of  construction,  for  mooring  purposes.  Between  these 
there  is  navigable  water.  The  mean  rise  and  fall  of  the  tide  in  this  locality  is  about  six  feet.  The  tide  on  both  ebb 
and  flood  is  very  swift,  and  the  duration  of  slack  water  small. 

The  ordinary  summer  afternoon  winds  of  the  locality  will  interfere  with  the  construction  work  during  its  early 
stages — that  is,  until  a  height  of  five  or  six  feet  above  the  foundation  is  reached. 

Parties  intending  to  submit  proposals  for  the  construction  of  this  station  should  visit  the  locality  and  study 
the  difficulties  to  be  contended  with. 

CHABACTEB  OF  MATEEIAL  AND  WOEKMANSHIP.— The  importance  of  this  work,  and  the  exposed 
position  in  which  it  is  to  be  done,  make  it  imperatively  necessary  that  only  the  very  best  of  materials  and  work- 
manship enter  into  the  construction  of  the  station.  It  must,  therefore,  be  distinctly  understood  that  these 
requisites  will  be  insisted  upon. 


CONDITIONS. 

The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  informalities. 

These  specifications  are  intended  to  include  everything  that  pertains  to  the  preparation  of  the  rock  to  properly 
receive  the  structure,  and  to  its  erection  to  the  top  of  the  concrete  pillar,  all  outside  plating,  all  bolts,  fastenings, 
etc.,  necessary  to  the  landing  of  material  and  supplies  at  the  station  which  should  be  properly  be  placed  in  this  part 
of  the  structure,  all  doors  and  windows,  and  pipes  through  the  concrete  and  rock  down  to  such  depths  as  may  be 
required,  and  all  fastenings  to  the  rock,  and  steps  forming  the  landing;  also  such  rings  and  eye-bolts  on  Little  Mile 
Eock  and  in  the  concrete  structure  as  may  be  required  for  mooring  purposes. 


6 

CEMENT. — All  cement  for  the>  concrete  work  will  be  furnished  by  the  Government 

MATEEIALS  FURNISHED  BY  THE  GOVERNMENT.— All  materials  and  parts  of  the  structure  furnished 
by  the  Government  will  be  transported  from  cars  or  place  of  storage  in  San  Francisco  by  the  contractor,  and  cared 
for  by  him  until  placed  in  position  at  the  station. 

PLANT,  ETC. — The  contractor  is  to  furnish  all  plant,  labor  and  material,  except  that  which  is  herein  specified 
as  to  be  furnished  by  the  Government,  necessary  for  the  complete  and  substantial  execution  of  everything  described, 
shown,  or  reasonably  implied  in  the  drawings  and  specifications. 

The  contractor  will  cover  and  protect  the  work  and  material,  and  be  responsible  for  all  damage  thereto  until 
the  final  completion  of  the  contract.  He  will  clear  away,  from  time  to  time  as  may  be  necessary,  all  dirt  and 
rubbish  resulting  from  the  work,  and  on  the  final  completion  he  will  thoroughly  clean  all  floors  and  windows, 
remove  all  debris,  and  leave  the  premises  in  good  order. 

DRAWINGS  AND  SPECIFICATIONS.— The  drawings  and  specifications  are  intended  to  correspond  and  be 
illustrative  of  each  other,  and  any  work  appearing  in  one  and  not  in  the  other  is  to  be  done  the  same  as  though 
included  in  both. 

No  advantage  will  be  taken  by  the  contractor  of  any  omission  of  information  in  the  specifications  or  drawings, 
as  full  explanations  or  detailed  drawings  will  be  given  for  any  part  of  the  work  not  sufficiently  shown  or  understood. 

The  contractor  will  substitute  at  his  own  cost,  and  without  delay,  satisfactory  work  and  material  for  any  and  all 
that  may  be  rejected,  and  will  make  good  any  work  that  may  be  disturbed  thereby. 

SUPERVISION  OF  WORK. — The  authorized  agents  of  the  Light-House  Engineer  are  to  have  access  to  the 
work  and  material  at  all  times.  An  agent  will  be  appointed  to  superintend  the  work,  and  in  case  of  a  difference 
between  him  and  the  contractor,  the  decision  of  the  Light-House  Engineer  shall  be  final. 

This  agent  shall  be  allowed  the  privilege  of  going  to  and  from  the  work  on  such  boats  and  by  such  means  as 
the  contractor  may  provide  for  himself  or  his  material  and  labor,  whenever  necessary,  without  expense  to  the 
Government. 

The  contractor  will  furnish  without  expense  to  the  Government  such  assistance  in  labor,  tools  and  materials,  as 
may  be  required  in  marking  lines  and  fixing  points  upon  the  rock,  which  are  necessary  to  his  work. 

The  Light-House  Engineer  may,  by  written  notice,  require  the  contractor  to  dismiss  at  once  such  workmen  or 
persons  in  his  employ  as  he  may  deem  incompetent,  careless,  or  injurious  to  the  work,  and  such  individual  may  not 
again  be  employed  on  the  work. 

EXTRA  WORK,  ETC. — Should  any  extra  work  or  changes  be  found  necessary  during  the  progress  of  the 
work,  the  value  of  such  work  or  changes  shall  be  the  subject  of  a  written  agreement  before  being  commenced, 
between  the  Light-House  Engineer  and  the  contractor,  subject  to  the  approval  of  the  Light-House  Board. 

All  work  of  every  kind  and  description  must  be  done  and  completed  to  the  satisfaction  of  the  Light-House 
Engineer. 


DETAILED    DESCRIPTIONS. 

SHAPE  OF  PLAN. — The  outline  of  the  plan  of  the  structure  will  be  formed  by  two  segments  of  equal  ellipses 
with  corresponding  axes  at  right  angles  to  each  other,  placed  so  as  to  form  a  symmetrical  figure,  the  distance 
between  the  centers  of  the  ellipses  being  12  feet  6  inches,  and  the  segments  being  joined  by  right  lines  tangent 
to  both.  The  major  and  minor  axes  of  the  two  ellipses  being  25  feet  and  21  feet  respectively. 

This  plan  will  be  adjusted  to  the  rock  and  the  structure  located  thereon  as  shown  upon  Plate  1  of  the  drawings 
accompanying  these  specifications.  The  base  of  the  structure  will  be  at  the  height  of  6  feet  above  the  plane  of 


a  mean  of  lower  low  water  as  established  and  marked  upon  the  rock;  this  height  being  practically  that  of  mean 
high  water. 

The  pillar  is  terminated  at  the  top  by  a  moulded  cap  extending  out  all  around,  two  feet  beyond  the  general  line 
of  the  face.  Plate  XI,  Fig.  1. 

EXCAVATION. — From  the  periphery  of  the  base  inward  for  a  distance  of  3  feet  the  rock  will  be  excavated 
where  necessary  down  to  reference  6,  mean  high  water,  and  carefully  prepared  for  the  concrete.  It  will  be  permitted 
to  use  only  very  small  charges  of  powder,  and  these  only  in  localities  where  the  rock  to  which  the  concrete  is  to 
be  joined  will  be  in  no  danger  of  being  shattered  or  disturbed. 

The  Light-House  Engineer,  or  his  representative,  is  to  be  the  exclusive  judge  as  to  where  explosives  may  be 
used,  and  as  to  the  quantity.  It  may  be  expected  that  practically  all  the  excavation  will  be  done  by  gadding.  No 
concrete  will  be  placed  until  its  foundation  has  been  satisfactorily  prepared. 

The  lower  part  of  the  stair  well  and  the  pump  room  adjoining,  and  a  part  of  the  passage  out  to  the  landing 
steps  will  be  in  excavation.  A  small  amount  of  excavation  will  be  required  outside  the  periphery  and  below 
reference  6,  to  accommodate  the  landing  stairs. 

Should  there  be  points  at  which  a  suitable  foundation  is  not  found  at  the  level  adopted,  at  these  the  contractor 
will  be  expected  to  extend  the  excavation  lower.  There  will  be  approximately  70  cubic  yards  of  excavation. 

STEEL  PLATING,  ETC. — The  concrete  is  to  be  enclosed  in  a  casing  of  tank  steel,  %  inch  thick,  in  sheets 
3  feet  high  by  8  feet  in  length,  or  longer  if  more  convenient  to  the  contractor.  The  edges  of  the  plates  are  to  be 
at  right  angles  to  each  other.  The  laps  of  the  horizontal  joints  to  be  2  inches,  the  vertical  joints  to  abut,  with 
straps  3  inches  wide  on  the  inside.  The  vertical  joints  to  be  practically  at  the  middle  of  the  upper  and  lower 
plates.  Plates  to  be  arranged  alternating  out  and  in,  as  shown  upon  the  drawings.  Rivets  to  be  %-inch 
diameter  with  pitch  4  inches  for  vertical  seams  and  6  inches  for  horizontal.  Holes  to  be  punched  in  plates  so  that 
rivets  will  draw  fair. 

There  will  be  %-inch  bent  iron  bolts,  1  foot  in  length,  with  heads  on  the  outside,  placed  about  3  feet  apart, 
the  bolts  in  one  row  to  be  opposite  the  intervals  of  the  next  adjoining,  for  the  purpose  of  anchoring  the  plates  to 
the  concrete.  The  third  row  of  these  stay  bolts  from  the  bottom  to  be  provided  with  eyes  one  inch  in  diameter. 

The  plating  will  extend  into  the  entrance  gallery  as  far  as  the  door  recess.  Openings  will  be  provided  through 
the  plating  at  the  port  holes  and  at  other  places  wherever  necessary.  One  object  of  this  plating  is  to  form  an  outer 
mould  for  the  concrete,  and  it  is  to  be  put  in  place  only  as  the  concrete  can  be  filled  in  back  of  it.  All  plates  to  be 
punched,  bent,  fitted  and  suitably  marked  in  the  shops  of  the  contractor  before  being  sent  to  the  rock. 

For  the  purpose  of  holding  the  lower  edge  of  the  plating  in  place,  iron  bolts  1  inch  in  diameter  and  18  inches 
long  will  be  firmly  fastened  into  the  rock  at  intervals  of  3  feet,  so  as  to  permit  the  plating  to  pass  them  alternately 
inside  and  out.  These  bolts  to  extend  1  foot  into  the  rock  and  6  inches  above  it. 

Around  the  top  edge  of  the  concrete  there  will  be  an  angle  iron  3%  inches  by  3%  inches  by  1/2  inch, 
fastened  to  the  concrete  by  %-inch  anchor  rods  18  inches  long,  one  on  each  side  of  the  chain  posts,  and  one  midway 
between  each  two  posts.  This  angle  will  have  the  corner  rounded  to  curve  with  a  radius  of  %•  inch.  Plate  XI, 
Fig.  1.  Holes  will  be  left  6  inches  by  6  inches  by  6  inches  about  6  feet  apart,  for  the  insertion  of  chain  posts.  Plate 
XI,  Fig.  1,  and  Plate  VI,  Fig.  1.  Conical  holes  4  inches  by  4  inches  at  top  and  6  inches  by  fi  inches  at  bottom,  2  feet 
deep  and  4  feet  apart,  to  be  left  as  shown  on  Plate  XII,  Fig.  1,  for  the  insertion  of  bolts  for  holding  down  the  iron 
superstructure. 

CONCRETE. — No  care  nor  expense  must  be  spared  to  make  this  the  very  best  that  can  be  manufactured. 
The  cement,  which  will  be  furnished  by  the  Government,  will  be  of  a  well-known  and  long-established  brand,  the 
best  that  can  be  obtained  in  the  San  Francisco  market.  This  to  be  taken  by  the  contractor  from  the  place  where 
stored  bv  the  Government. 


8 

The  sand  must  be  clean  and  sharp,  and  gravel  and  broken  stone  clean,  hard,  and  free  from  all  impurities  of 
every  character  whatever.  The  broken  stone  must  be  in  size  such  as  to  go  through  a  screen  with  1  inch  meshes. 

Bidders  must  submit  with  their  proposals  samples  of  the  sand,  gravel,  and  broken  stone  that  they  propose  to 
furnish. 

The  concrete  will  be  mixed  in  the  proportions  of  one  cement,  two  sand,  and  four  broken  stone  or  coarse  gravel, 
by  measurement;  with  only  sufficient  water  to  insure  that  the  materials  may  be  worked  with  reasonable  ease.  The 
water  to  be  added  through  a  hoze  nozzle,  or  other  form  of  sprinkling  arrangement,  after  the  materials  have  been 
thoroughly  mixed  dry.  The  whole  mass  to  be  again  thoroughly  mixed.  The  custom  of  throwing  water  upon  the 
concrete  at  the  place  of  deposit  to  make  it  work  easily  will  not  be  permitted. 

No  more  than  thirty  minutes  must  elapse  from  the  time  that  the  water  is  first  added  to  the  concrete  until 
the  tamping  is  completed. 

The  concrete  must  be  deposited  in  layers  of  about  4  inches  and  well  rammed.  The  top  of  each  layer  to  be 
roughened  and  prepared  to  receive  the  succeeding  one  so  that  the  junction  between  the  two  will  be  perfect  and  no 
seams  or  interstices  visible.  In  placing  new  concrete  on  that  thoroughly  set  great  care  must  be  taken  to  roughen 
the  surface  of  the  old,  clean  it  thoroughly  and  do  all  things  necessary  to  insure  that  the  junction  will  be  perfect 
as  possible. 

All  forms  and  surfaces  against  which  the  concrete  is  to  be  placed  should  be  rigid  so  as  not  to  shake  during 
the  process  of  packing. 

After  the  concrete  is  in  place  and  the  forms  removed,  all  exposed  surfaces  must  be  pointed  and  made  smooth 
and  uniform  by  being  covered  with  a  thin  coating  of  mortar  composed  of  one  part  sand  and  one  part  cement, 
well  rubbed  on  with  a  wooden  trowel. 

In  some  parts  of  the  structure  the  proportions  of  the  material  in  the  concrete  may  be  slightly  varied  at  the 
discretion  of  the  Light-House  Engineer. 

In  the  upper  part  of  this  structure  there  will  be  provided  a  store  room  having  a  height  of  7  feet  10  inches, 
with  walls  4  feet  thick.  These  walls  to  be  pierced  by  six  holes  for  the  admission  of  light,  which  are  to  have  an 
outside  diameter  of  2  feet  and  a  diameter  of  20  inches  at  the  window  frame.  Inside  of  windows  a  rectangular 
recess;  dimensions  on  drawings.  Port  hole  windows,  glass  one  inch  thick,  bronze  frame,  each  fastened  to  concrete 
by  four  bronze  screw  bolts  with  nuts  imbedded  in  concrete.  Plate  XI,  Figs.  1  to  7. 

CISTEEN. — Under  the  floor  of  the  store  room  a  cistern  for  fresh  water,  8  feet  diameter  and  10  feet  high, 
will  be  provided.  The  top  of  this  to  be  covered  with  concrete  having  bars  of  %-inch  twisted  iron  imbedded  in  it. 
A  hole  will  be  left  in  this  top  for  entrance  to  the  cistern,  about  20  inches  in  diameter,  and  provided  with  a 
suitable  frame  and  cover. 

A  SVirinch  galvanized  iron  pipe  leading  from  the  bottom  of  the  cistern  out  to  the  stair  well  will  be  provided 
for  drainage  purposes.  There  will  be  a  suitable  cock  or  valve  at  the  lower  end  of  this  pipe  to  which  a  2%-inch 
standard  hose  can  be  attached. 

The  inside  of  the  cistern  to  be  coated  with  three  coats  of  Sylvester  Wash,  and  one  coat  of  P.  &  B.  paint,  all  to 
be  put  on  as  may  be  directed.  Plate  IV,  and  Plate  XII,  Figs.  8,  9  and  10. 

STAIRS. — Winding  concrete  stairs,  leading  from  store  room  down  to  entrance  passage,  will  be  provided. 
The  diameter  of  the  stair  well  to  be  6  feet;  the  rise  of  the  steps  8  inches. 

At  the  bottom  of  the  stair  well  there  will  be  a  recess  for  the  accommodation  of  a  small  pump,  which  is  to 
furnish  water  for  cooling  the  oil  engines.  The  entrance  passage  will  lead  from  this  out  through  the  concrete  at 
a  level  of  5  feet  4  inches  above  the  mean  high  water  line.  There  will  be  a  door  at  the  foot  of  the  stairs  which  will 
lead  to  the  pump  room,  and  another  4  feet  from  the  entrance  to  the  passage  way. 

The  form  of  the  structure  must  conform  in  all  respects  to  the  drawings.  It  is  estimated  that  approximately 
770  cubic  yards  of  concrete  will  be  required. 


9 

ACCESSORIES. — Piping  of  every  description  that  is  to  be  imbedded  in  the  concrete,  or  leading  down  through 
the  rock  into  the  water,  all  bolts  excepting  those  intended  to  fasten  the  superstructure  to  its  base,  port  hole  frames 
and  lights,  ring-bolts  and  fastenings  of  every  description,  and  expanded  metal  and  twisted  rods  that  are  imbedded 
in  the  concrete,  all  doors  and  their  fastenings  forming  a  part  of  this  concrete  pillar,  will  be  furnished  and  put  in 
place  by  the  contractor. 

Around  the  whole  structure  extending  from  the  base  to  the  top  at  a  distance  of  12  inches  inside  the  plating 
there  will  be  imbedded  in  the  concrete  expanded  metal  of  a  character  and  quality  to  be  approved  by  the  Light- 
House  Engineer.  This,  will  have  meshes  of  about  3  inches  on  a  side,  and  weigh  about  9  ounces  per  square  foot. 
Metal  of  the  same  quality  and  description  will  be  imbedded  in  the  under  surface  of  the  stairs,  and  in  the  partition 
wall  at  the  foot  of  the  stairs,  as  these  are  being  built.  A  twisted  or  corrugated  bar  of  iron  about  %  inch  square 
will  be  imbedded  in  the  newel  of  the  stairs. 

A  bronze  pipe  2  inch  interior  diameter,  %  inch  thick,  with  suitable  elbows  and  connections,  will  extend  from 
the  floor  of  the  pump  room  to  the  outer  surface  of  the  rock  at  a  level  not  less  than  6  feet  below  extreme  low  water. 
Plate  VI,  Fig.  3;  Plate  V. 

A  4-inch  terra  cotta  drain  pipe  will  extend  from  the  top  of  the  store  room  floor  down  and  out  at  about  the  level 
of  mean  high  water. 

A  3-inch  terra  cotta  pipe  will  lead  from  the  foot  of  the  stair  well  to  the  outside  as  may  be  directed  for  the 
purpose  of  introducing  a  telephone  cable  into  the  structure. 

A  notch  will  be  left  in  the  side  of  the  stair  well  for  the  accommodation  of  the  pump  rod  and  discharge  pipe, 
telephone  cable,  and  for  other  purposes.  The  size  and  location  of  this  will  be  designated  by  the  Light-House 
Engineer,  and  shown  on  drawings.  •  • 

DOORS. — -At  the  point  fixed  for  the' entrance  door  the  opening  will  be  C  feet  high  by  2  feet  6  inches  wide.  It 
will  be  closed  by  a  door  3  feet  wide  by  6  feet  6  inches  high,  opening  outward  into  a  recess.  The  door  will  close  all 
round  against  a  shoulder  3  inches  wide,  which  shall  be  guarded  by  a  bronze  angle  frame,  faces  3  inches  wide  and 
y2  inch  thick.  This  frame  to  be  fastened  at  intervals  of  18  inches  by  3/4-inch  bronze  bolts  extending  through  the 
inside  leg  of  the  angle  12  inches  into  the  concrete,  and  there  securely  made  fast.  The  outer  end  of  the  bolts  to 
be  provided  with  thread  and  nut.  The  outside  face  of  the  outer  leg  of  the  angle  to  be  planed  to  a  true  surface, 
so  as  to  fit  closely  to  a  similar  surface  to  be  fastened  to  the  door,  which,  when  closed,  will  be  practically  watertight. 
Plate  VII. 

The  door  to  be  4  inches  thick,  made  of  two  thicknesses  of  2  inch  by  4  inch  planed,  clear,  straight-grained, 
well-seasoned,  white  oak,  free  from  sap,  rot,  knots,  windshakes,  or  other  imperfections.  The  pieces  to  be  beaded 
on  one  edge  and  put  together  diagonally  with  %-inch  bronze  bolts,  washers  on  both  ends.  Between  the  pieces 
there  will  be  a  layer  of  thick  asphalt  paper. 

Around  the  inside  edge  of  the  door  there  will  be  a  bronze  frame,  3  inches  wide  and  %  inch  thick,  planed  on 
one  side  to  fit  against  the  corresponding  surface  of  the  frame  fastened  to  the  concrete.  This  will  be  fastened  to 
the  door  with  i/^-inch  bronze  bolts  and  nuts,  the  inside  ends  of  bolts  to  be  screw-head  shaped  to  fit  into  counter- 
sunk holes  to  be  made  in  the  frame.  Washers  to  be  provided  for  outside  ends  of  bolts. 

On  the  center  line  of  the  door  and  about  4  feet  6  inches  from  the  bottom  there  will  be  an  opening  7%  inches 
diameter,  in  which  will  be  placed,  suitably  fastened  by  a  bronze  frame,  a  piece  of  plate  glass  %  inch  thick. 
Plate  X,  Figs.  1,  2  and  3. 

The  door  will  be  hung  upon  three  pairs  of  heavy  bronze  strap  hinges,  made  and  fastened  as  shown  on  the 
drawings.  Plate  VII,  and  Plate  X,  Figs.  2  and '3.  Suitable  slide  bolts  and  fastenings  to  be  provided  at  top  and 
bottom  and  outer  edge  of  the  door.  Plate  X,  Figs.  2  to  9. 

The  door  leading  into  the  pump  room  from  the  foot  of  the  stairs  to  be  made  in  a  similar  manner  of  two 
thicknesses  of  same  quality  of  oak,  11/2  inches  thick  and  4  inches  wide,  joined  together  by  %-inch  bolts  with 


10 

washers.  The  door  frame  and  the  frame  around  the  door  on  the  inside  will  be  similar  to  that  prescribed  for  the 
entrance  door.  Suitable  hinges  and  fastenings  will  be  provided.  Details  of  these  doors  and  their  fastenings  are 
shown  on  Plates  VII,  VIII,  IX  and  X. 

All  metal  used  in  and  about  these  doors  to  be  of  best  quality  tough  bronze. 

For  the  purpose  of  gaining  access  to  this  entrance  from  the  outside,  there  will  be  steps,  made  of  concrete, 
leading  from  low  water  to  the  base  of  the  structure,  and  from  thence  up  to  the  entrance  floor  a  ladder.  The 
material  of  this  will  be  bronze.  Rounds  1^4  inches  diameter,  length  of  face  3  feet  6  inches  and  10  inches  apart. 
To  be  4  inches  out  from  face  of  iron  plating  and  extended  into  the  concrete  12  inches,  and  there  firmly  fastened. 
There  will  be  similar  hand  rails  on  each  side  of  the  entrance.  Plates  VII  and  VIII. 

LANDING  PLATFORM.— There  will  be  a  platform  3  feet  by  6  feet  at  the  top  of  the  pillar  extending  3  feet 
beyond  the  face  of  the  plating,  constructed  as  shown  on  the  drawings.  Plate  XII,  Figs.  1  to  7. 

PAINTING. — As  the  plating  is  extended  upward  it  is  to  be  thoroughly  cleaned  of  dirt  and  rust,  made 
perfectly  dry,  and  given  a  coat  of  pure  boiled  linseed  oil  put  on  hot.  When  this  has  become  hardened  it  will  be 
followed  by  a  coat  of  red  lead  and  graphite  in  equal  parts,  mixed  with  boiled  linseed  oil.  A  final  coat  of  white  lead 
ground  in  linseed  oil  will  be  put  on  ae  the  work  is  completed. 

TIME. — The  actual  work  of  excavating  on  the  rock  to  prepare  it  for  the  concrete  must  be  commenced, 
weather  conditions  permitting,  within  30  calendar  days  from  the  date  of  notification  of  approval  of  the  contract 
by  the  Secretary  of  Commerce  and  Labor,  and  all  work  contemplated  under  the  contract  must  be  pushed  to  com- 
pletion at  the  earliest  practicable  moment  by  taking  advantage  of  every  favorable  condition  of  tide  and  weather 
as  it  occurs. 

If  the  work  contemplated  by  the  contract  be  not  completed  to  the  satisfaction  of  the  Light-House  Engineer 
by  the  end  of  240  calendar  days  from  the  date  of  said  notification  of  approval  of  contract,  irrespective  of  weather 
conditions,  the  contractor  then  becomes  liable  for  the  expenses  that  may  accrue  as  defined  in  the  next  following 
paragraph  of  these  specifications. 

STEEL  TOWER. — The  structural  steel  portion  of  this  station,  that  is  to  be  built  upon  the  concrete  base  to 
be  constructed  under  these  specifications,  will  form  the  subject  of  a  separate  contract.  In  case  the  work  required 
under  these  specifications  be  not  completed  within  the  above  specified  time,  the  contractor  must  pay  all  the  extra 
expenses  arising  from  storage,  cartage,  care  and  handling  of  material  of  the  superstructure  and  from  other  causes, 
in  consequence  of  his  delay.  The  amount  of  these  expenses  to  be  deducted  from  the  money  due  him  on  final 
settlement  of  his  accounts. 

PAYMENTS. — The  work  will  be  paid  for  in  two  payments  of  50  per  centum  each  of  the  contract  price, 
provided  that  from  the  first  payment  20  per  centum  shall  be  deducted  and  retained  until  the  final  completion  of 
the  work.  The  first  payment  shall  be  made  when  the  structure  shall  have  been  completed  to  a  height  of  20  feet 
above  its  base.  The  second  and  final  payment,  including  the  retained  percentage,  shall  be  made  when  the  work 
contemplated  by  the  contract  is  all  entirely  completed  to  the  satisfaction  of  the  Light-House  Engineer,  after 
deduction  of  such  amounts  as  may  have  accrued  in  consequence  of  delay  in  completion  as  described  in  the 
paragraph  next  preceding. 


[Before  tilling1  out  this  bid  the  instructions  to  bidders  should  be  carefully  read.] 

BID. 


(DATE:).... 


I  (or  we), 


„ of  the 

....  State  of  ... 


engaged  in hereby  agree  to  furnish 

all  the  labor  and  material,  except  cement,  for,  and  construct  a  monolith  concrete  base  or  pillar  of  a  light  and 
fog-signal  station  to  be  erected  on  Mile  Rock,  at  the  entrance  to  San  Francisco  Harbor,  California,  in  accordance 

with  the  terms  of  the  advertisement  dated  April ,  1904,  and  the  specifications  and  plans  herewith,  for  the 

sum  of .dollars  ($  .). 

"        \T*"  ...—.  ^« 

100 

The  same  to  be  completed  on  or  before  the day  of 

(Signature:) 

\        O  / 

(Address:) _ _ 

(Signature:) 

V        O  / 

(Address:) _ _ 

To  the 

ENGINEER  12th  LIGHT-HOUSE  DISTRICT, 

Room  91,  Flood  Building,  San  Francisco,  Cal. 

(11) 


GUARANTY  TO  ACCOMPANY  PROPOSAL. 


We, ../. 

of in  the  Countv  of 

•"•"V 

and  State  of _ _ and „ _  ...  of 

.in  the  County  of _ and  State  of 

_ hereby  undertake  that  if  the  bid  of. - 

_ herewith  accompanying,  dated 

r         j        o" 

for  furnishing  all  the  labor  and  material,  except  cement,  for,  and  constructing  a  monolith  concrete  base  or  pillar 
of  a  light  and  fog-signal  station  to  be  erected  on  Mile  Rock,  at  the  entrance  to  San  Francisco  Harbor,  California, 
be  accepted  as  to  any  or  all  of  the  items  of  supplies,  materials,  and  services  proposed  to  be  furnished  thereby,  or 
as  to  any  portion  of  the  same  within  sixty  days  from  the  date  of  the  opening  of  proposals  therefor,  the  said 

bidder will,  within  ten  days 

after  notice  of  such  acceptance,  enter  ii.to  a  contract  with  the  proper  officer  of  the  United  States  to  furnish  such 
articles  of  supplies  and  materials  and  such  services  of  those  proposed  to  be  furnished  by  said  bid  as  shall  be 
accepted,  at  the  prices  offered  by  said  bid  and  in  accordance  with  the  terms  and  conditions  of  the  advertisement 
inviting  said  proposals,  and  will  give  bond  with  good  and  sufficient  sureties  for  the  faithful  and  proper  fulfillment 
of  such  contract.  And  we  bind  ourselves,  our  heirs,  executors,  and  administrators,  jointly  and  severally,  to  pay  to 
the  United  States,  in  case  the  said  bidder  shall  fail  to  enter  into  such  contract  or  give  such  bond  within  ten  days 
after  said  notice  of  acceptance,  the  difference  in  money  between  the  amount  of  the  bid  of  said  bidder  on  the 
articles  or  services  so  accepted  and  the  amount  for  which  the  proper  officer  of  the  United  States  may  contract  with 
another  party  to  furnish  said  articles  and  services,  if  the  latter  amount  be  in  excess  of  the  former. 

Given  under  our  hands  and  seals  this day  of - 


In  presence  of — 


83  to 

...  as  to 


*  Affix  adhesive  seal. 


(13) 


STATE  OF ") 

>ss. 
County  of j 

I,  __ ,  one  of  the  guarantors  named  in  the  foregoing  guaranty,  do 

swear  that  I  am  pecuniarily  worth  the  sum  of dollars 

over  and  above  all  my  debts  and  liabilities. 


Subscribed  and  sworn  to  before  me  this _ day  of.. 

at 


i 


STATE  OF 

County  of.. 


>ss. 


I,  - ,  one  of  the  guarantors  named  in  the  foregoing  guaranty,  do 

swear  that  I  am  pecuniarily  worth  the  sum  of. _ dollars 

over  and  above  all  my  debts  and  liabilities. 


Subscribed  and  sworn  to  before  me  this _ day  of.. 

at. 


t 


2 


do  hereby  certify  that  ............................................................... 

and  ...................................................................................................  ,  the  guarantor      above  named,.. 


personally  known  to  me,  and  that,  to  the  best  of  my  knowledge  and  belief,  3 is  pecuniarily  worth,  over 

and  above  all  his  debts  and  liabilities,  the  sum  stated  in  the  accompanying  affidavit  subscribed  by  him. 


I, ,  do  hereby  certify  that.... 


_ ,  the  guarantor  above  named,  is  personally  known  to  me,  and  that,  to  the  best  of  my 

knowledge  and  belief,  he  is  pecuniarily  worth,  over  and  above  all  his  debts  and  liabilities,  the  sum  stated  in  the 
accompanying  affidavit  subscribed  by  him. 


1  The  oath   to  be  taken   before  a  notary  public  or  some  other    officer     having     general     authority     to     administer     oaths. 
If  the  officer  has  an  official  seal  it  must  be  affixed,  otherwise  the  proper  certificate  as  to  his  official  character  must  be  furnished. 

2  This    certificate    to    be    by   a    judge   or.   clerk    of    a    United  States  court,  a  United  States  district  attorney,  United  States 
commissioner,   postmaster,  or  a  judge  or  clerk  of  a   State  court  of  record  with  the  seal  of  said  court  attached.     If  the  official 
can  make  the  certificate  as  to  both  sureties,  it  will  not  be  necessary  to  fill  out  the  next  form  below. 

8  He  or  each. 

(15) 


INSTRUCTIONS  TO   BIDDERS. 


N.  B. — Failure  to  comply  with  these  instructions  renders  the  bid  informal  and  liable  to  be  rejected. 


I.  All  bids  must  be  made  upon  the  printed  form  annexed  hereto. 

2     Each  bid  must  state  the  sum  for  which  the  entire  work,  as  shown  on  the  drawings  and  described  in  the 
specifications,  will  be  completed. 

3.  The  bidder's  place  of  residence,  with  county  and  State,  should  be  given  after  his  signature,  which  must 
be  written  in  full. 

4.  Anyone  signing  a  bid  as  the  agent  of  another,  or   of   others,   should   file   with  it  legal   evidence   of   his 
authority  to  do  so. 

5.  When  firms  bid,  the  firm  name  and  the  full  name  of  each  member  thereof  should  be  written  at  the 
beginning  of  the  bid;  for  instance,  "  Smith,  Brown  &  Co.,  of  the  City  of  New  York,  a  firm  composed  of  John  S. 
Smith,  Charles  B.  Brown,  and  John  W.  Robinson."     The  bid  should  be  signed  in  the  firm  name  without  a  seal. 
When  corporations  bid,  the  bid  should  be  signed  with  the  corporate  name  by  some  person  duly  authorized  to  do 
so  (evidence  of  whose  authority  should  be  appended),  and  sealed  with  the  corporate  seal. 

6.  Bidders  should  satisfy  the  United  States  of  their  ability  to  furnish  the  material  and  perform  the  work 
for  which  they  bid. 

7.  Reasonable  grounds  for  supposing  that  any  bidder  is  interested  in  more  than  one  bid  for  the  same  item  will 
cause  the  rejection  of  all  bids  in  which  he  is  interested. 

8.  Bids  submitted  by  different  members  of  the  same  firm  or  copartnership  will  not  be  considered. 

9.  The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  any  defects. 

10.  All  bids  must  be  enclosed  in  an  envelope  endorsed,   "Proposal   for   Concrete   Base   of   Light-Station    on 
Mile  Rock,  San  Francisco  Harbor,"  and  then  enclosed  in  another  envelope  and  directed  to  the  "  Engineer  Twelfth 
Light-House  District,  Room  91,  Flood  Building,  San  Francisco,  Cal." 

II.  All  bids  will  be  publicly  opened  at  the  time  specified  in  the  advertisement.     Bidders  are  invited  to  be 
present  and  witness  the  opening  of  the  bids. 

12.  The  form  of  contract  to  be  entered  into  may  be  seen  at  this  office.     Bidders  are  to  be  understood  as 
accepting  the  terms  and  conditions  contained  in  such  form  of  contract. 

13.  The  plans  and  specifications,  together  with  these  instructions,  will  form  part  of  the  contract. 

14.  Should  the  bidder  to  whom  the  contract  may  be  awarded  fail  to  enter  into  contract  within  ten  days  after 
notice  has  been  given  him  that  his  bid  has  been  accepted,  he  will  be  considered  a  defaulting  contractor,  and 
recommendation  will  be  made  to  the  Secretary  of  Commerce  and  Labor  that  hereafter  no  proposal  of  his  be 
considered. 

15.  A  bond,  with  one  corporate  surety  or  with  two  individual  sureties,  in  the  sum  •of  $ will 

be  required  for  the  faithful  performance  of  the  contract.     Each  surety  will  be  required  to  qualify  in  double  the 
amount  of  the  bond. 

(17) 


18 

16.  A  firm  will  not  be  accepted  as  a  surety,  nor  will  a  partner  be  accepted  as  a  surety  for  a  copartner,  or  for 
a  firm  of  which  he  is  a  member.    An  officer  of  a  corporation  will  not  be  accepted  as  surety  for  such  corporation. 
In  no  case  will  a  married  woman  be  accepted  as  a  surety. 

17.  No  bid  will  be  accepted  or  contract  entered  into  until  approved  by  the  Light-House  Board. 

18.  Transfers  of  contracts,  or  of  interests  in  contracts,  are  prohibited  by  law. 

19.  Payment  will  be  made  as  specified. 

20.  The  work  must  be  completed  and  delivered  as  specified. 

21.  No  proposal  will  be  considered  unless  accompanied  by  a  guaranty  in  manner  and  form  as  directed  in  these 
instructions. 

22.  All  bids  and  guaranties  must  be  made  in  duplicate,  upon  printed  forms  to  be  obtained  at  this  office. 

23.  The  guaranty  attached  to  each  copy  of  the  bid  must  be  signed  by  two  responsible  guarantors,  to  be 
certified  as  good  and  sufficient  guarantors  by  a  judge  or  clerk  of  United   States  court,   United   States   district 
attorney,  United  States  commissioner,  postmaster,  or  judge  or  clerk  of  a  State  court  of  record,  with  the  seal  of 
said  court  attached,  or  by  one  guaranty  or  surety  company  duly  authorized  in  accordance  with  the  provisions  of 
an  act  of  Congress  approved  August  13,  1894. 

24.  Each  guarantor  must  justify  in  the  sum  of  twenty  (20)  per  cent  of  the  amount  of  the  bid.     The 
liability  of  the  guarantors  and  the  bidder  is  expressed  in  the  guaranty  attached  to  the  bid. 


CONTRACT. 


N.  B. — In  executing  this  contract  the  directions  on  page  29  should  be  carefully  followed. 


1  HrtiClCS    Of    Bgreemeitt,    made  and  entered  into  between  

2  .. 


3  _ 

6 

7  „ 

8  of  the  first  part,  and  THOS.  H.  HANDBUEY,  Lieutenant-Colonel,  Corps  of  Engineers,  U.  S.  A.,  Engineer  Twelfth 

9  Light-House  District,  acting  for  and  in  behalf  .of  the  United  States  of  America,  of  the  second  part,  witnesseth: 

10  That  the  party  of  the  first  part,  in  consideration  of  the  matters  hereinafter  referred  to  and  set  out,  and  of  the 

11  specifications  and  drawings  attached  hereto,  and  forming  a  part  of  this  contract,  covenants  and  agrees,  to  and 

12  with  the  party  of  the  second  part,  to  furnish  all  the  material  and  labor  necessary  for,  and  to  construct  a  concrete 

13  base  or  pillar  for  the  light  and  fog-signal  station  to  be  erected  on  Mile  Rock,  at  the  entrance  to  the  Harbor  of  San 

14  Francisco,  California,  all  as  more  particularly  set  forth  in  the  specifications  and  drawings  above  referred  to,  and 

15  to  complete  the  same  within  two  hundred  and  forty  (240)  calendar  days  from  the  date  of  notification  to  the  party  of 

16  the  first  part  that  the  contract  has  been  approved  by  the  Secretary  of  Commerce  and  Labor. 

17  And  the  said  party  of  the  first  part  further  agrees  to  conform  in  every  particular  to  the  stipulations  and 

18  conditions  stated  in  this  contract,  and  to  the  specifications  and  drawings  for  the  work,  hereto  annexed,  which  are 

19  to  be  considered  as  a  part  of  the  same,  and  to  be  governed  in  all  matters  regarding  said  work  and  the  materials 

20  used  therein  by  the  said  party  of  the  second  part,  or  the  authorized  agent  or  agents  thereof;  and  that  the  said 

(19) 


20 

21  work  and  materials  used  therein _ _ „ _ „ 

22  shall  be  subjected  to  a  rigid  inspection  to  be  made  by  the  party  of  the  second  part,  or  its  agent  or  agents,  and 

23  that  this  inspection  shall  be  final. 

24  And  the  said  party  of  the  second  part  covenants  and  agrees  to  pay  the  party  of  the  first  part,  in  full  payment 

25  for  said  work  and  materials  used  therein,  as  follows:  When  the  structure  shall  have  been  completed  to  a  height  of 

26  20  feet  above  its  base  50  per  centum  of  the  contract  price  will  be  paid,  provided  that  from  this  payment  20  per 

27  centum  shall  be  deducted  and  retained  until  the  final  completion  of  the  work.     The  second  and  final  payment, 

28  including  the  retained  percentage,  shall  be  made  when  the  work  contemplated  by  the  contract  is  all  entirely 

29  completed  to  the  satisfaction  of  the  Light-House  Engineer,  after  deduction  of  such  amounts  as  may  have  accrued 

30  in  consequence  of  delay  in  completion,  as  described  in  the  specifications. 

31  And  it  is  expressly  understood  and  agreed  that,  as  each  payment  hereinbefore  stipulated  is  made,  possession  of 

32  the  material,  labor  and  articles  which  are  paid  for  by  such  payments  shall  pass  to,  and  the  title  thereto  shall  be 

33  vested  in  the  United  States. 

34  If,  in  any  event,  the  party  of  the  first  part  shall  delay  or  fail  to  commence  the  delivery  of  the  material  or 

35  the  performance  of  the  work  specified  herein,  or  shall,  in  the  judgment  of  the  officer  of  the  Light-House  Board 

36  in  charge,  fail  to  prosecute  faithfully  and  diligently  the  work  in  accordance  with  the  specifications  and  require- 

37  ments  of  this  contract,  then,  in  either  case,  the  party  of  the  second  part,  or  his  successor,  shall  have  power,  with 

38  the  sanction  of  the  Light-House  Board,  to  annul  this  contract  by  giving  notice  in  writing  to  that  effect  to  the  party 

39  (or  parties,  or  either  of  them)  of  the  first  part;  and  the  party  of  the  second  part  shall  be  thereupon  authorized,  if 

40  an  immediate   performance   of   the   work   or   delivery   of  the  materials  be  in  his  opinion  required  by  the  public 

41  exigency,  to  proceed  to  provide  for  the  same  by  open  purchase  or  contract,  as  prescribed  in  section  3709   of  the 

42  Revised  Statutes  of  the  United  States;  but  the  party  of  the  first  part  shall  remain  liable  to  the  party  of  the  second 

43  part  for  the  damages  occasioned  to  him  by  the  said  noncompliance,  delay,  or  negligence:    Provided,  however,  That 

44  if  the  party  (or  parties)  of  the  first  part  shall  by  freshets,  ice,  or  other  force  or  violence  of  the  elements,  and  by 

45  no  fault  of  his  or  their  own,  be  prevented  either  from  commencing  or  completing  the  work,   or  delivering  the 

46  materials  at  the  time  agreed  upon  in  this  contract,  such  additional  time  may,  in  writing,  be  allowed  him  or  them 

47  for  such  commencement  or  completion  as,  in  the  judgment  of  the  party  of  the  second  part,  or  his  successor,  shall 

48  be  just  and  reasonable,  any  additional  expense  incurred  by  the  United  States  on  account  of  inspection  or  otherwise 

49  during  the  period  of  extension  to  be  deducted  from  the  contract  price  of  the  work;  but  such  allowance  and  extension 


21 

50  shall  in  no  manner  affect  the  rights  or  obligations  of  the  parties  under  this  contract,  but  the  same  shall  subsist, 

51  take  effect,  and  be  enforceable  precisely  as  if  the  new  date  for  such'commencement  or  completion  had  been  the  date 

52  originally  herein  agreed  upon. 

53  It  is  further  understood  and  agreed  that  in  case  of  failure  on  the  part  of  the  party  of  the  first  part  to  complete 

54  this  contract  as  specified  and  agreed  upon,  that  the  said  United  States  shall  have  the  right  to  recover  any  or  all 

55  damages  incurred  by  reason  of  said  failure  by  the  party  of  the  first  part,  and  shall  also  have  the  right  to  recover 

56  whatever  sums  may  be  expended  by  the  party  of  the  second  part  in  completing  the  said  contract  in  excess  of  the 

57  price  herein  stipulated  to  be  paid  to  the  party  of  the  first  part  for  completing  the  same. 

58  And  it  is  further  stipulated  and  agreed  that  no  Member  of  or  Delegate  to  Congress  shall  be  admitted  to  any 

59  share  or  part  of  this  contract  or  agreement,  or  to  any  benefit  to  arise  therefrom;  and  this  contract  shall  be  in  all 
gO  its  parts  subject  to  the  terms  and  conditions  of  sections  3739,  3740,  and  3742  of  the  Revised  Statutes  of  the  United 
gj   States. 

g2  And  it  is  also  expressly  understood  and  provided  that  nothing  herein  contained  shall  be  so  construed  as  to 

63  authorize  any  officer  or  agent  of  the  United  States  to  bind  the  United   States  by   contract  bevond   the   amount 
g4  appropriated  by  Congress. 

65  And  it  is  further  covenanted  and  agreed  that  no  member  of  the   Light-House   Board,  inspector,  lightkeeper, 

gg   or  other  person  in  any  manner  connected  with  the  Light-House  Service,  shall  be  interested,  either  directly  or 
g7   indirectly,  in  this  contract,  or  be  entitled  to  any  benefit  to  arise  therefrom;  and  for  any  violation  of  this  covenant 
«g  and  agreement  the  party  of  the  first  part  shall  forfeit  all  moneys  which  may  become  due  under  this  contract. 
fiq  Provided,  also,  that  it  is  expressly  understood  and  agreed  that  this  contract,  or  any  part  thereof,  shall  not  be 

70  sublet  nor  assigned,  but  that  it  shall  be  well  and  truly  carried  out  and  fulfilled  in  good  faith  by  the  above-recited 

71  party  of  the  first  part,  and  that  payment  on  account  thereof  shall  be  made  to  the  aforesaid  party  of  the  first  part, 
„„  successors,  heirs,  executors,   or  administrators. 

70  And  provided  further,  that  this  contract  shall  not  be  binding  upon  the  United  States  until  it  shall  have  been 

74  approved  by  the  Light-House  Board. 

75  And   for  the   true   and  faithful   performance   of   all    and   singular   the   covenants,    articles,    and   agreements 

76  hereinbefore  particularly  set  forth,  the  subscribers  hereunto  bind  themselves,  jointly  and  severally,  their  and  each 

77  of  their  successors,  heirs,  executors,  and  administrators. 


22 

78  Thus  covenanted,  made,  and  agreed  by  the  said  parties,  this — day  of_ 

79  anno  Domini  one  thousand  nine  hundred  and  four,  as  witness  their  hands. 

80  Signed  and  delivered  in  presence  of — 


i 

H 

I 


NOTE. — The  bondsmen  must  not  sign  the  contract. 


BOND  WITH  CONTRACT. 


KNOW   ALL   MEN   BY   THESE   PRESENTS,   That  WC 


_ _ _ ,  as  sureties,  are  held  and  firmly  bound  unto  the  United  States  of  America  in 

the  gum  of — - dollars 

($ ),  lawful  money  of  the  United  States,  to  be  paid  to  the  said  United  States,  or  its  authorized 

agent,  as  liquidated  damages;  for  which  payment,  well  and  truly  to  be  made,  we,  and  each  of  us  do  bind  ourselves, 
and  each  of  our  successors,  heirs,  executors,  and  administrators,  jointly  and  severally,  firmly  by  these  presents. 

Sealed  with  our  seals,  dated  this day   of. _ 

The  condition  of  the  above  obligation  is  such  that  if  the  said _ _ 


successors,  heirs,  executors  or  administrators,  shall  well  and  truly  execute  the  contract  hereto  annexed  which 

ha. entered  into  with  Thos.  H.  Handbury,  Lieutenant-Colonel,  Corps  of  Engineers, 

U.  S.  A.,  Engineer  Twelfth  Light-House  District,  for  and  in  behalf  of  the  United  States,  by  which 

covenant. and  agree to  construct  a  concrete  base  or  pillar  for  the  light  and  fog-signal  station  to  be  erected  on 

(23) 


24 

Mile  Rock,  at  the  entrance  to  the  Harbor  of  San  Francisco,  California, 

according  to  all  the  conditions  of  the  said  contract,  and  shall  promptly  make  payments  to  all  persons  supplying 

said labor  and  materials  in  the  prosecution  of  the  work  provided  for  in  such 

contract,  then  this  obligation  to  be  void;  otherwise  to  remain  in  full  force  and  virtue. 


Signed  and  sealed  in  the  presence  of — 


WITNESSES: 


[L.  s.] 

[L.  s.] 

_[L.  s.] 

[L.  s.] 


NOTES. 

If  the  contract  be  made  by  an  incorporated  company,  the  corporate  seal  should  be  impressed  on,  or  affixed  to,  each  copy  of 
both  the  contract  and  the  bond,  and  a  certificate,  under  the  corporate  seal  of  the  company,  showing  that  the  person  who  signs  in  its 
behalf  is,  at  the  time  of  signing,  the  officer  he  purports  to  be,  and  as  such  is  duly  authorized  to  sign  sealed  instruments  in  behalf 
of  the  company,  should  be  affixed  to  at  least  one  copy  of  the  contract. 

All  signatures  of  sureties  should  have  affixed  to  them  adhesive  seals,  and  their  names  should  be  written  in  full. 

The  residence  of  sureties  and  witnesses  should  be  given. 

The  bondsmen  must  qualify  in  the  forms  following. 

The  bondsmen  must  not  sign  the  contract. 


BONDSMEN'S  OATHS. 

STATE  OF 


/Be. 

County  of 

_ _ „ _ }  being  duly  sworn,  deposes  and  says  that  he  resides  at 

No street,  in  the __ of... _ *.. 

in  the  State  of „ ~ _. ;  and  that  the  value  of  his  property,  over  and  above  all 

debts  and  liabilities  incurred  by  him,  is  over _ > _ dollars 

($ ),  and  that  he  is  fully  responsible  for  the  amount  of  his  obligation  in  the  foregoing 

bond  by  him  executed. 

Sworn  to  and  subscribed  this. day  of. _ _ ,  190 ,  before  me. 

(Signature  of  officer  administering  oath,)  r          -i 

with  seal,  if  any.)  (  - - LL-  S-J 


STATE  OF _. ) 

Vss. 
County  of ) 

,  being  duly  sworn,  deposes  and  says  that  he  resides  at 

No street,  in  the of..., 

in  the  State  of _;  and  that  the  value  of  his  property,  over  and  above  all 

debts  and  liabilities  incurred  by  him,  is  over ; dollars 

($ ),  and  that  he  is  fully  responsible  for  the  amount  of  his  obligation  in  the  foregoing 

bond  by  him  executed. 

(Signature   of   surety:) - - 


Sworn  to  and  subscribed  this day  of. ,  190 ,  before  me. 

(Signature  of  officer  administering  oath,  >  r      _  -i 

with  seal,  if  any.)  J  LL-  8-J 


NOTES. 

If  the  affidavits  of  the  sureties  be  made  before  a  notary  public,  his  seal  should  be  impressed  thereon;  if  made  before  a  justice 
of  the  peace,  the  usual  certificate  attesting  the  official  character  of  the  magistrate  should  be  appended. 
Each  surety  will  qualify  in  double  the  amount  of  the  bond. 

(  25  ) 


Form  of  Justification  by  Corporate  Surety. 


[This  form  of  justification  is  to  be  used  when  a  guaranty  or  surety  company  is  upon  the  bond  of  the  contractors,  instead 

of  two  individual  sureties.'} 


>  ss. 


STATE  OF 

County  of - 

Personally  appeared  before  me, _ _ - on 

this _ - day  of one  thousand  nine  hundred  and  four,  known  to  me  to  be  the 

of  the 

- the  corporation  described  in  and  which  executed  the  annexed 

bond  of as  surety  thereon,  and  who,  being  by  me  duly  sworn, 

deposes  and  says  that  he  resides  at. in  the  State  of. _- 

that  he  is  the. of  the  said 

Company,  and  knows  the  corporate  seal  thereof;  that  said  company  is  duly  and  legally 

incorporated  under  the  laws  of  the  State  of. _ _ ;  that  said  company  has  complied 

with  the  provisions  of  the  Act  of  Congress  of  August  13,  1894,  allowing  certain  corporations  to  be  accepted  as 

surety  on  bonds;  that  the  seal  affixed  to  the  annexed  bond  of - 


is  the  corporate  seal  of  the  said Company 

and  was  affixed  thereto  by  order  and  authority  of  the  board  of  directors  of  said  company;  and  that  he  signed  his 

name  thereto  by  like  order  and  authority  as of  said  company; 

and  that  he  is  acquainted  with and  knows 

him  to  be  the _ of  said  company;  and  that  the  signature  of  said 

subscribed  to  said  bond  is  in  the  genuine  handwriting 

of  said and  was  thereto  subscribed  by  order  and  authority 

of  said  board  of  directors,  and  in  the  presence  of  said  deponent;  and  that  the  assets  of  said  company,  unincumbered 
and  liable  to  execution,  exceed  its  claims,  debts,  and  liabilities  of  every  nature  whatsoever,  by  more  than   the 

sum  of dollars  ($ ). 

Deponent  further  says  that residing 

(26) 


27 

at in  the  State  of _ has  been  duly  appointed  as 

the  agent  of  said  company  to  accept  service  of  process  against  said  company  in  the judicial 

district  of and  is  authorized  to  enter  an  appearance  in  behalf  of  said 

company  in  any  action,  suit,  or  proceeding  brought  against  it  in  said  judicial  district. 


Sworn  to,  acknowledged  before  me,  and  subscribed  in  my  presence  this. _ day  of 

190 


NOTES. 

If  the  above  affidavit  be  made  before  a    notary  public,  his  seal  should  be  impressed ;  if  made  before  a  justice  of  the  peace, 
the  usual  certificate  attesting  the  official  character  of  the  magistrate  should  be  appended. 
The  surety  company  will  qualify  in  double  the  amount  of  the  bond. 


CERTIFICATE   OF  SOLVENCY. 


I  CERTIFY  that  I  have  made  due  and  diligent  personal  inquiry  as  to  the  ability  of  the  signers  of  the  foregoing 
bond,  and  am  satisfied  that  they  are  good  and  sufficient,  and  fully  responsible  for  the  sum  of. 

_ dollars  ($ _ )  each. 


(Signature  of  certifying  official. )- 


DATE: ....190 


NOTES. 

The  surety's  certificate  of  solvency  must  be  signed  by  an  officer  of  the  Government  known  to  the  Treasury  Department 
This  form  need  not  be  used  when  a  guaranty  or  surety  company  is  upon  the  bond  of  a  contractor. 


(28) 


Directions  as  to  Execution  of   Contracts. 


1.  The  contract  papers  proper,  comprising  the  specifications,  drawings,  if  any,  contract,  bond,  bondsmen's 
oaths,  justification  by  corporate  surety — when  a  guaranty  or  surety  company  is  upon  the  bond  of  the  contractor, 
instead  of  two  individual  sureties — and  certificate  of  solvency,  should  be  made  in  quadruplicate,  and  each  copy 
should  be  the  exact  counterpart  of  the  others,  so  that  any  one  of  them  may  be  used  as  an  original. 

2.  Before  signatures  are  appended  to  the  papers,  all  dates  should  be  written  in,  and  all  remaining  blank 
spaces  ruled  out,  with  ink. 

3.  Interlineations  and  erasures  are  to  be  avoided  when  possible;  but  when  they  are  unavoidable,  either  in 
the  specifications,  the  contract,  or  the  bond,  they  should  be  noted,  word  by  word,  immediately  above  the  signature 
of  the  witnesses,  specifying  the  number  of  each  line  where  they  occur;  and  certificates  should  be  made  that  each 
specific  correction  or  alteration  was  made  before  the  contract  was  signed. 

4.  The  full  name  and  the  residence  of  each  signer  of  a  contract  and  bond  should  be  written  in  the  body  of 
the  contract  and  bond. 

5.  When  firms  contract,  the  name  of  the  firm  and  the  full  name  of  each  member  thereof  should  be  written  at 
the  beginning  of  the  contract;  for  instance,  "  Smith,  Brown  &  Co.,  of  the  city  of  New  York,  a  firm  composed  of 
John  S.  Smith,  Charles  B.  Brown,  and  John  W.  Eobinson."      The  contract  should  be  signed  in  the  firm  name 
without  seal.     The  bondsmen  must  not  sign  the  contract. 

6.  When  an  incorporated  company  enters  into  contract,  the  corporate  name  of  the  company  should  be  written 
at  the  beginning   of  the   contract  and  bond;    for  instance,  "  The    Smith    and   Brown    Dredging    Company,    a 
corporation  created  by  and  existing  under  the  laws  of  the  State  of  New  York,  of  the  city  of  New  York,  in  said 
State."    The  contract  and  bond  should  then  be  signed  with  the  corporate  name  by  a  person  duly  authorized  to  do 
so,  sealed  with  the  corporate  seal,  and  a  certificate,  under  the  corporate  seal  of  the  company,  showing  the  signer's 
authority  to  sign  sealed  instruments  in  its  behalf,  should  be  appended  to  one  copy  of  the  contract.     In  the  event 
that  the  corporation  has  no  corporate  seal,  a  seal  of  wax  or  wafer  should  be  affixed  to  the  bond  and  adopted  and 
used  for  the  time  being  as  the  seal  of  the  corporation,  and  the  fact  that  such  corporation  has  no  corporate  seal 
should  be  shown  by  affidavit  duly  made  before  a  notary  public,  whose  official  seal  should  be  affixed  thereto. 

7.  A  bond  for  the  faithful  performance  of  the  contract  will  be  required.     Seals  of  wax  or  wafer  should  be 
affixed  to  the  signatures  of  principals  and  sureties,  if  individuals;  and  corporate  seals  should  be  affixed  as  required 
by  Rule  6.    The  bond  should  bear  the  same  date,  or  a  date  subsequent  to  that  of  the  contract. 

8.  An  individual  or  individuals,  doing  business  under  a  firm  name,  should  sign  the  bond  in  his,  or  their, 
individual  names.    Firm  names  should  not  be  signed  to  the  bond. 

9.  Each  signature  to  a  contract  or  bond  should  be  made  in  the  presence  of  at  least  one  witness,  who  should 
sign  his  name  as  a  witness. 

(29) 


30 

10.  A  firm  will  not  be  accepted  as  a  surety,  nor  will  a  partner  be  accepted  as  a  surety  for  a  copartner,  nor 
for  a  firm  of  which  he  is  a  member.    An  officer  of  a  corporation  will  not  be  accepted  as  surety  for  such  corporation. 
In  no  case  will  a  married  woman  be  accepted  as  a  surety,  and  when  an  unmarried  woman  (widow  or  spinster)  is 
given  as  a  surety,  she  must  be  described  as  such  in  the  body  of  the  bond. 

11.  When  a  person  signs  a  contract  or  bond  as  the  agent  or  attorney  in  fact  of  another  person,  evidence  of  his 
authority  to  sign  the  same  should  be  furnished.    The  authority  to  execute  an  instrument  under  seal  should  itself 
be  under  seal,  and  it  should  also  be  duly  acknowledged  before  an  officer  empowered  to  take  acknowledgments. 

12.  There  must  be  not  less  than  two  individual  sureties,  but  one  corporate  surety  duly  qualified  under  the 
Act  of  Congress  of  August  13,  1894,  may  be  accepted  as  sole  surety.     The  contractor  and  sureties  should  sign 
(execute)  each  bond.     Each  member  of  a  firm  should  sign  the  bond  personally  or  by  attorney;  in  the  latter  case, 
a  certified  copy  of  the  power  of  attorney  under  which  the  signature  is  made  should  be  appended  to  the  contract. 
Each  surety  must  qualify  in  double  the  amount  of  the  bond.      This  direction  applies  to  corporate  as  well  as 
individual  sureties,  and  corporate  sureties  should  also  attach  to  each  bond  a  copy  of  the  last  statement  of  their 
assets  and  liabilities,  as  rendered  pursuant  to  Section  4  of  the  Act  of  Congress  of  August  13,  1894.     Each  surety 
should  make  and  sign  an  affidavit  of  the  amount  he  is  worth  over  and  above  all  debts  and  liabilities,  and  such 
exemptions  as  may  be  allowed  by  law.     Sureties,  other  than  corporate  sureties,  should  state  under  oath  that  they 
are  not  responsible  as  sureties  on  any  other  bond,  or,  if  so  liable,  the  amount  of  such  liability.    When  the  required 
oath  is  taken  before  a  justice  of  the  peace,  a  certificate  in  the  usual  form  should  be  appended,  attesting  his  official 
character.     This  inconvenience  can  be  avoided  by  ha.ving  the  oath  taken  before  a  notary  public,  in  which  case 
the  notarial  seal  must  be  affixed  or  impressed. 

13.  A  judge  or  clerk  of  a  United  States  court,  a  United  States  district  attorney,  United  States  commissioner, 
postmaster,  or  a  judge  or  clerk  of  a  State  court  of  record,  with  the  seal  of  said  court  attached,  should  certify  that 
the  -Sureties  are  sufficient  to  pay  the  penalty  of  the  bond,  and  except  in  the  case  of  a  judge  of  a  United  States  court, 
or  a  United  States  attorney,  if  the  person  certifying  has  no  seal,  his  official  character  should  be  duly  certified. 
The  foregoing  does  not  apply  to  corporate  sureties  who  have  complied  with  Rule  12  of  these  directions  relative 
to  evidence  of  their  ability  to  meet  double  the  entire  .obligation  of  their  bond. 

14.  Corporate  sureties,  duly  qualified  to  do  business,  under  the  Act  of  Congress  of  August  13,  1894,  and  who 
have  filed  with  the  Solicitor  of  the  Department  of  Commerce  and  Labor  evidence  of  their  authority  to  do  business, 
from  the  Department  of  Justice,  need  not  furnish  a  certificate  of  such  authority  with  each  contract  on  which  they 
are  bondsmen. 

15.  When  contracts  and  bonds  have  been  thus  prepared,  and  signed  and  sealed  by  the  officer  making  them, 
in  behalf  of  the  United  States,  they  should  be  forwarded  to  the  Board  for  approval. 

16.  When  approved  by  the  Board  and  by  the  Secretary  of  the  Department  of  Commerce  and  Labor,  two  copies 
will  be  returned  to  the  officer  making  the  contract,  one  for  delivery  to  the  contractor  and  the  other  for  file. 


U.  S.  LIGHT-HOUSE  ESTABLISHHENT. 


CONTRACT 


FOR 


Construction   of  a  Structural  Steel  Tower 


FOR  A 


Light  and  Fog- Signal  Station 


ON 


MILE  ROCK, 

ENTRANCE  TO  SAN   FRANCISCO  HARBOR, 
CALIFORNIA. 


ADVERTISEMENT. 


OFFICE  OF  U.  S.  LIGHT-HOUSE  ENGINEEE, 

TWELFTH  DISTRICT,  Room  91,  Flood  Building. 
SAN  FRANCISCO,  CAL.,  ,  1904. 

SEALED  proposals  will  be  received  at  this  office  until  12  o'clock,  noon,  Standard  time,  on 

,  1904,  and  then  publicly  opened,  for  the  construction  of  a  tower  built  of  structural  steel  upon 

a  concrete  base  which  will  be  prepared  for  its  reception,  for  a  light  and  fog-signal  station  on  Mile  Rock,  entrance 
to  San  Francisco  Harbor,  Cal. 

Plans  and  specifications,  together  with  forms  of  proposal  and  all  other  necessary  information,  may  be  obtained 
on  application  to  this  office. 

The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  informalities. 

THOS.    H.    HANDBUKY, 
Lieut.  Col.,  Corps  of  Engineers,  TJ.  S.  A.,  Engineer  12th  Light-House  District. 


SPECIFICATIONS. 


INFORMATION. 

The  object  of  the  contract  to  be  entered  into  under  these  specifications  is  to  obtain,  on  the  part  of  the 
Government,  a  tower  built  of  structural  steel  upon  a  concrete  base  which  will  be  prepared  for  its  reception,  on 
Mile  Eock,  at  the  entrance  to  San  Francisco  Harbor,  California.  This  tower  will  be  four  stories  high,  surmounted 
by  a  lantern,  and  will  be  used  as  a  light  and  fog-signal  station.  The  station  will  be  provided  with  machinery  for 
a  10-inch  fog  whistle  which  will  be  operated  by  compressed  air.  The  motive  power  of  the  compressing  machinery 
will  be  some  form  of  mineral  oil  engine,  in  duplicate.  Accommodations  are  to  be  provided  in  the  tower  for  three 
keepers  and  a  reasonable  supply  of  provisions  and  oil  for  operating  the  station.  The  top  of  the  concrete  base  on 
which  the  tower  stands  is  40  feet  above  the  plane  of  a  mean  of  lower  low  waters.  The  focal  plane  of  the  light 
will  be  84  feet  3  inches  above  this  datum. 

LOCATION. — Mile  Rock  is  about  one  half  a  mile  inside  a  line  joining  the  outer  heads  of  San  Francisco 
Harbor,  and  three  eighths  of  a  mile  from  the  nearest  point  of  the  mainland  to  the  southward.  It  rises  nearly 
vertically  out  of  the  water,  which  is  from  forty  to  fifty  feet  deep. 

About  one  hundred  and  sixty  feet  from  the  rock  on  the  inshore  side  there  is  another  smaller  rock  extending 
above  high  water,  which  may  be  found  useful  in  the  course  of  construction  for  mooring  purposes.  Between  these 
there  is  navigable  water.  The  mean  rise  and  fall  of  the  tide  in  this  locality  is  about  6  feet.  The  tide  on  both  ebb 
and  flood  is  very  swift,  and  the  duration  of  slack  water  short. 

The  ordinary  summer  afternoon  winds  of  the  locality  may  create  waves  which  will  prevent  landing  directly 
from  a  boat  on  the  rock. 

Parties  intending  to  submit  proposals  for  doing  this  work  should  visit  the  locality  and  study  the  difficulties 
to  be  contended  with  while  carrying  on  their  operations. 

CHARACTER  OF  MATERIAL  AND  WORKMANSHIP.— The  importance  of  this  work  and  the  exposed 
position  in  which  it  is  to  be  placed,  make  it  imperatively  necessary  that  only  the  very  best  material  and  work- 
manship enter  into  its  construction.  It  must,  therefore,  be  distinctly  understood  that  these  requisites  will  be 
insisted  upon. 

The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  informalities. 


CONDITIONS. 

The  contractor  for  this  work  is  expected  to  furnish  all  the  material  and  labor  necessary  to  place  the 
structure  hereinafter  described  upon  the  concrete  base,  furnish  all  machinery,  except  such  as  will  hereafter  be 
described  as  to  be  furnished  by  the  United  States,  and  make  all  connections  to  the  same  as  are  necessary  to  a 
fog-signal  and  light  station,  as  is  contemplated  by  these  specifications,  complete  in  every  respect  and  in  good 

(5) 


6 

working  order.  The  contract  price  will  include  the  cost  of  everything  connected  with  the  station,  with  the 
exceptions  mentioned,  that  is  not  included  in  the  work  done  in  connection  with  the  concrete  base,  which  in  general 
may  be  described  as  including  all  that  portion  which  lies  on  and  above  the  floor  of  the  store  room  in  the  concrete 
base,  and  the  small  pump  located  in  the  pump  room,  with  its  connections. 

MATERIAL  FURNISHED  13Y  THE  GOVERNMENT.— The  Government  will  furnish  the  lens  and  its  stand, 
which  are  to  be  placed  in  the  lantern-,  two  20  H.  P.  Hornsby-Akroyd  engines,  with  air  compressors  attached,  but 
no  piping,  reservoirs  or  other  necessary  accompaniments;  and  two  Crosby  automatic  governors.  All  of  which  must 
be  transported  from  the  cars  or  place  of  storage  in  San  Francisco,  CaL,  by  the  contractor,  and  cared  for  by  him 
until  placed  in  position  at  the  station. 

PLANT,  ETC. — The  contractor  is  to  furnish  all  the  plant,  labor,  material  and  machinery,  except  that  which 
is  herein  specified  as  to  be  furnished  by  the  Government,  necessary  for  the  complete  and  substantial  execution  of 
everything  described,  shown,  or  reasonably  implied  in  the  drawings  and  specifications. 

PROTECTION  OF  WORK,  ETC.— The  contractor  will  cover  and  protect  the  work,  material  and  machinery, 
and  be  responsible  for  all  damage  thereto  until  the  final  completion  of  the  contract.  He  will  clear  away  from  time 
to  time,  as  may  be  necessary,  all  dirt  and  rubbish  resulting  from  the  work,  and  on  the  final  completion  he  will 
thoroughly  clean  all  floors  and  windows,  remove  all  debris,  and  leave  the  premises  in  good  order. 

DRAWINGS  AND  SPECIFICATIONS. — The  drawings  and  specifications  are  intended  to  correspond  and  be 
illustrative  of  each  other,  and  any  work  appearing  in  one  and  not  in  the  other  is  to  be  done  the  same  as  though 
included  in  both. 

No  advantage  will  be  taken  by  the  contractor  of  any  omission  of  information  in  the  specifications  or  drawings, 
as  full  explanations,  or  detailed  drawings,  will  be  given  for  any  part  of  the  work  not  sufficiently  shown  or  understood. 

The  contractor  will  substitute  at  his  own  cost  and  without  delay,  satisfactory  work  and  material  for  any  and"  all 
that  may  be  rejected,  and  will  make  good  any  work  that  may  be  disturbed  thereby. 

SUPERVISION  OF  WORK.— The  authorized  agents  of  the  Light-House  Engineer  are  to  have  access  to  the 
work  and  material  at  all  times.  Agents  will  be  appointed  to  superintend  the  work  in  its  various  stages,  and  in  case 
of  a  difference  between  one  of  these  and  the  contractor,  the  decision  of  the  Light-House  Engineer  shall  be  final. 

The  agent  appointed  to  superintend  the  construction  of  the  work  upon  the  concrete  base  shall  be  allowed  the 
privilege  of  going  to  and  from  the  work  on  such  boats  and  by  such  means  as  the  contractor  may  provide  for 
transporting  himself  or  his  material  and  employees,  whenever  required,  without  expense  to  the  Government. 

The  contractor  will  furnish,  without  expense  to  the  Government,  such  assistance  in  labor,  tools  and  material, 
as  may  from  time  to  time  be  required  in  marking  lines  and  fixing  points  necessary  in  the  progress  of  the  work. 

The  Light-House  Engineer  may,  by  written  notice,  require  the  contractor  to  dismiss  at  once  such  workmen  or 
persons  in  his  employ  as  he  may  deem  incompetent,  careless,  or  injurious  to  the  work,  and  such  individuals  may 
not  again  be  employed  on  the  work. 

EXTRA  WORK,  ETC.— The  contract  price  is  intended  to  include  the  cost  of  all  things  necessary  to  the 
station  completed  and  in  working  order;  but,  should  any  extra  work  or  changes  be  found  necessary  during  the 
progress  of  the  work,  the  value  of  such  work  or  changes  shall  be  the  subject  of  a  written  agreement  before  being 
commenced,  between  the  Light-House  Engineer  and  the  contractor,  subject  to  the  approval  of  the  Light-House  Board. 

All  work  of  every  kind  and  description  must  be  done  and  completed  to  the  satisfaction  of  the  Light-House 
Engineer. 


DETAILED    IDESCRIPTIOlSr. 

SHAPE  OF  PLAN,  ETC. — The  outline  of  the  plan  of  the  concrete  structure  on  which  this  tower  is  to  rest 
will  be  formed  by  two  segments  of  equal  ellipses  with  corresponding  axes  at  right  angles  to  each  other,  placed  so 
as  to  form  a  symmetrical  figure,  the  distance  between  the  centers  of  the  two  ellipses  being  12  feet  6  inches,  and 
the  segments  being  joined  by  right  lines  tangent  to  both.  The  major  and  minor  axes  of  the  two  ellipses  being 
25  feet  and  21  feet  respectively. 

The  outline  of  the  plan  of  the  first  story  of  the  tower  will  be  one  foot  inside  of  and  parallel  to  this.  The 
outlines  of  the  plans  of  the  second  and  third  stories  will  be  circular,  having  a  diameter  of  18  feet.  The  plan  of 
the  fourth  story  will  'also  be  circular  in  outline  with  a  diameter  of  13  feet  4  inches.  The  diameter  of  the  lantern 
will  be  8  feet  9l/2  inches. 

The  general  shape  of  the  structure  and  the  arrangement  of  its  different  parts  are  shown  upon  Plates  II,  III, 
IV  and  V,  of  the  drawings  which  accompany  these  specifications,  and  which,  with  the  specifications,  are  to  form  a 
part  of  the  contract.  Further  details  are  shown  upon  succeeding  plates,  which  will  be  referred  to  from  time  to 
time  in  these  specifications. 

ACCESSIBILITY  OF  PARTS. — In  designing  this  tower  the  general  idea  has  been  kept  in  view  that  every 
part  of  it,  both  outside  and  inside,  shall  at  all  times  be  accessible  for  the  purpose  of  easy  examination  and  cleansing 
of  rust.  Compressed  air  being  always  available  for  sand  blast  purposes  it  will  be  an  easy  matter,  even  in  this 
exposed  position,  to  prevent  deterioration  of  the  iron  work  by  thorough  cleansing  and  painting. 

MATEEIAL. — All  the  material  which  enters  into  the  construction  of  this  tower,  except  where  otherwise 
stated  or  reasonably  implied,  will  be  of  structural  steel,  shaped  and  put  together  as  shown  upon  the  drawings  or 
herein  specified.  The  material  must  be  the  best  of  its  kind  and  suitable  for  the  purpose.  The  workmanship  must 
be.first  class  in  every  respect  and  in  accordance  with  the  latest  practice. 

It  is  understood  and  agreed  that  the  contractor  is  to  make  his  own  estimate  of  the  material  and  work  required, 
and  to  do  everything  in  accordance  with  the  drawings  or  specifications,  or  which  may  reasonably  be  required 
under  them. 

Iron  castings  shall  be  of  tough  gray  iron,  cleaned  and  chipped  and  otherwise  made  finished  pieces  of  work,  in 
keeping  with  the  careful  work  required  in  the  steel  construction. 

Bronze  to  be  tough  and  of  the  usual  U.  S.  Government  standard. 

The  steel  used  must  meet  the  "  Standard  Specifications  of  the  Association  of  American  Steel  Manufacturers  " 
for  medium  steel. 

The  tests  must  be  done  at  the  mill,  and  the  mill  certificate  of  tests  will  be  accepted  for  the  physical  and 
chemical  qualities,  provided  they  meet  the  requirements  of  the  above-mentioned  standard.  The  contractor  must, 
however,  whenever  called  upon,  furnish,  without  expense  to  the  Government,  prepared  specimens  of  the  several 
kinds  of  material  as  may  be  required  by  the  Light-House  Engineer,  to  fully  determine  their  character. 

The  edges  of  all  plates  which  go  to  make  up  the  outside  walls  must  be  parallel  and  at  right  angles,  and  these, 
together  with  the  edges  of  all  plates  used  in  floors,  roofs,  etc.,  must  be  planed  so  as  to  fit  the  adjoining  edge 
perfectly. 

The  dimensions  of  rivets  called  for  on  the  drawings  shall  be  understood  to  mean  the  actual  size  of  the  cold 
rivet  before  heating.  All  rivets  to  be  soft  steel,  standard  chemical  and  physical  properties.  They  shall  fit  neatly 
into  the  holes,  fill  the  same  completely,  and  form  perfect  heads  when  driven.  All  bolts  used  as  permanent 
fittings  in  frames,  walls  or  floors,  to  be  turned  to  snug  fit. 

All  holes  shall  be  accurately  spaced  so  that  when  the  parts  are  assembled  rivets  may  be  easily  inserted,  and 
may  not  exceed  the  diameter  of  the  rivet  by  more  than  l-16th  inch,  and  must  not  crack  or  bend  metal  on  being 


8 

punched.  Any  corrections  necessary  shall  be  made  with  reamers.  No  drifting  to  enlarge  unfair  holes  will  be 
allowed.  Riveted  members  shall  have  all  parts  well  pinned  up  and  drawn  together  with  bolts  before  riveting  is 
commenced.  All  slovenly-looking  rivets  shall  be  cut  out  and  replaced.  For  permanent  fittings  all  bolt  holes  in 
frames,  walls,  or  floors,  must  be  drilled  to  receive  turned  bolts  in  close  fit.  Other  bolt  holes  may  be  punched. 

All  screw  threads  must  be  tight  fits  in  the  nuts,  and  all  threads  shall  be  U.  S.  standard. 

All  work  possible,  consistent  with  transportation  and  the  assembling  of  parts,  should  be  done  in  the  shop,  so 
as  to  reduce  to  a  minimum  the  work  to  be  done  on  the  concrete  base. 

ASSEMBLING  OF  PARTS,  ETC.— The  tower  shall  be  set  up  in  the  shops  of  the  contractor,  either  as  a 
whole  or  in  stories,  and  suitably  held  together  by  bolts  and  temporary  rivets,  to  insure  the  accurate  fitting  of  the 
parts. 

After  being  inspected  in  this  condition  it  shall  be  systematically  marked  so  that  the  parts  can  be  readily 
reassembled  and  prepared  for  transportation.  All  pins,  nuts,  bolts,  and  other  small  parts  shall  be  boxed  or  crated 
so  that  they  can  be  easily  handled,  and  to  insure  against  loss  or  damage. 

Should  the  inspector,  through  an  oversight  or  otherwise,  accept  material  or  workmanship  which  is  defective 
or  contrary  to  the  intent  of  the  specifications,  this  material,  no  matter  in  what  state  of  the  completion  of  the  work, 
may  be  rejected  and  the  contractor  required  to  replace  it  with  other  and  satisfactory  material. 

The  surfaces  of  all  parts  that  are  to  come  together  must  first  be  thoroughly  cleaned  by  wire  brushes,  sand 
blast,  or  other  means,  down  to  the  gray  metal,  then  given  a  heavy  coat  of  red  lead  and  boiled  linseed  oil.  This 
requirement  to  apply  to  work  done  in  the  shop  as  well  as  that  done  in  the  field. 

No  painting  other  than  this  just  described  will  be  required  in  the  shop. 

CHANGE  OF  FORMS  AND  SIZES  OF  MATERIALS.— Before  submitting  his  proposal  the  contractor 
should  satisfy  himself  that  he  can  readily  obtain  structural  steel  of  the  shapes  and  weights  required  by  these 
specifications.  Should  it  so  happen  during  the  process  of  construction  that  the  state  of  the  market  is  such 
that  some  of  the  exact  forms  and  sizes  specified  cannot  be  obtained  within  a  reasonable  time,  then  other  shapes  that 
can  be  obtained  and  which  will  answer  the  same  purpose,  may  be  substituted  for  these,  upon  written  consent  of 
the  Light-House  Engineer,  and  provided  always  that  the  substituted  material  be  of  the  same  strength  as  that 
which  it  replaces,  or  greater,  and  that  there  be  no  increase  of  cost  to  the  Government  on  account  of  the  sub- 
stitution. Always  bearing  in  mind  that  the  surface  of  the  metal  must  all  be  accessible  to  the  sand  blast. 

DETAILS  OF  CONSTRUCTION. 

FRAME. — The  skeleton  consists  of  four  principal  columns,  numerous  auxiliary  posts,  engine  room  and  watch 
room  walls,  and  angle  studding  in  all  walls,  aligned,  braced  and  secured  at  each  floor  with  channel  or  angle  caps 
or  sills  and  numerous  knee  braces. 

COLUMNS. — They  are  four  in  number,  two  extending  unbroken  from  store  room  floor  and  two  unbroken  from 
engine  room  floor,  to  watch  room  floor.  Below  the  kitchen  floor  the  columns  are  composed  of  8-inch  I,  25%  Ibs., 
reinforced  by  two  channels  12  inches,  20y2  Ibs.,  riveted  thereto  with  %-inch  rivets,  4  inches  pitch  for  2  feet  at 
each  end  and  6  inches  pitch  for  the  balance.  The  continuous  I  beam  portion  of  columns,  above  kitchen  floor,  forms 
direct  attachment  for  walls  to  which  they  are  riveted  with  %-inch  rivets,  4  inches  pitch,  the  lines  of  rivets 
staggered.  Plate  XIII,  Figs.  2,  3,  5,  6,  8,  9,  12,  13  and  14.  Each  column  has  a  cast  iron  base  (Plate  XIII,  Figs. 
13,  14  and  15)  securely  anchored  into  concrete  substructure  as  shown;  one  column  resting  near  circular  stair  well 
has  load  distributed  by  three  6-inch  I  14%  Ibs.,  carefully  bedded  and  leveled  to  proper  plane  of  support. 

All  the  connections,  shelves,  braces,  hitches  at  floors  or  elsewhere  (Plates  XIII  and  XVI)  are  to  be  carefully 
fitted  in  accordance  with  drawings. 


9 

POSTS. — Around  and  within  the  walls  of  the  engine  room  at  intervals  and  following  an  outline  shown 
(Plate  XIV,  Fig.  3),  and  defined  by  previously  constructed  substructure,  are  a  series  of  posts  of  8-inch  I  beams, 
251/2  ibs ^  an(j  one  8-inch  I,  ll1/^  Ibs.,  each  independently  anchored  to  concrete  with  li/4-inch  bent  and  twisted 
bolts,  and  securely  attached  at  top  to  braces  or  caps  and  floor  skeleton.  Plate  XIII,  Figs.  1,  4,  7,  8,  9  and  10. 
The  engine  room  wall  is  riveted  to  these  posts  with  %-inch  rivets  pitched  4  inches,  the  lines  of  riveting  staggered. 
In  the  watch  room,  securely  riveted  to  braces  and  floors  top  and  bottom,  and  supporting  walls  of  steel  plates 
similarly  riveted  as  in  engine  room,  are  four  8-inch  I  beam  posts,  251/4  Ibs.  Plate  XVI,  Figs.  1,  2  and  3;  Plate 
XVII,  Figs.  1  and  2. 

STUDDING. — In  all  exterior  walls  angle  studs  4  inches  by  4  inches  by  5-l(iths  inch  are  required;  to  be  spaced 
as  shown  on  drawings  (Plate  XIII,  Fig.  7;  Plate  XVI,  Figs.  1  and  8);  between  kitchen  floor  and  living  room  ceiling 
they  are  continuous,  crimped  at  ends  over  sill  circumferential  angles.  To  these  angle  studs  the  walls  are  to  be 
riveted  with  %-inch  rivets  pitched  4  inches. 

All  columns,  posts  and  studs  are  to  be  straight,  cut  to  exact  required  lengths  and  machined  on  ends  to  insure 
perfect  fit  and  even  bearing. 

PEDESTALS.— The  cast  iron  blocks  (Plate  XIII,  Figs.  13,  14  and  15)  axe  to  have  faces  planed  which  receive 
the  machined  ends  of  columns.  The  bottom  of  block  resting  on  I  beams  at  circular  stairs  also  to  be  planed. 

FLOORS. — For  all  the  floors,  beginning  with  the  engine  room,  there  is  a  steel  frame  composed  of  principal 
and  secondary  beams  supporting  steel  plate  floors  in  the  engine  room,  wood  floor  on  wood  joists  in  kitchen,  living 
room  and  watch  room;  and  for  the  watch  room  ceiling,  lantern  floor  and  balcony,  a  cast  iron  covering,  all  in  conformity 
to  drawings.  Plate  XIV,  Figs.  1  to  4;  Plate  XV,  Figs.  1  to  4;  Plates  XVI  and  XVII. 

ENGINE  ROOM  FLOOR  FRAME.— The  principal  beams,  12-inch  I  beams,  3iy2  Ibs.,  and  12-inch  channels, 
20y2  Ibs.  (Plate  XIV,  Fig.  3)  with  such  of  the  secondary  beams  as  land  upon  the  concrete  are  to  be  bedded  upon 
%-inch  wall  plates  into  the  concrete  with  tops  flush  with  top  of  same.  Care  must  be  taken  that  stair  and  trap- 
door openings  are  exactly  accommodated.  Plate  XIII,  Figs.  16  to  22.  Since  the  tops  of  all  beams  are  to  be  at  a 
common  level,  it  will  be  necessary  to  cope  the  6-inch  I  beams  and  3-inch  T's  under  the  flanges  of  the  principal 
beams  at  their  connections,  which  must  be  done  to  neat  finish  fit.  A  circumferential  angle,  3  inches  by  3  inches  by 
14  inch  (Plate  XIII,  Fig.  8  and  Plate  XIV,  Fig.  3)  following  the  interior  outline  of  the  concrete  finish,  cut  in 
between  imbedded  beams,  attached  thereto,  and  supported  at  frequent  intervals  upon  small  clips  anchored  into 
concrete,  is  to  be  furnished,  bent  and  finished  to  a  nicety  to  act  as  a  stiffener  to  floor  plates  and  a  protection 
to  concrete.  ; 

The  steel  floor  plates  are  to  be  riveted  to  the  tops  of  all  members  of  floor  frame  with  %-inch  rivets  with  heads 
countersunk  on  upper  side,  and  spaced  6  inches  from  centers  single  gauge,  or  6  inches  from  alternate  sides  in 
double  gauge.  The  landing  platform  at  this  floor  is  already  provided. 

KITCHEN  AND  BOAT  DECK  FRAME.— The  principal  beams,  10-inch  I's,  35  Ibs.,  arranged  as  per  plans 
(Plate  XIII,  Figs.  1  to  6,  8  and  9,  and  Plate  XIV,  Figs.  2  and  4),  are  supported  by  attachment  to  columns  and  to 
engine  room  posts,  in  turn  support  the  wood  kitchen  floor  and  steel  boat  deck,  engine  room  ceiling,  and  super- 
imposed tower.  Where  necessary  beams  are  to  be  coped  together,  all  end  cuts  and  fittings  to  be  neat  and  snug. 
All  beams  or  extensions  of  beams  forming  boat  deck  are  secured  rigidly  at  outer  extremities  to  tops  of  columns, 
to  braces,  and  to  curved  10-inch  channel,  15  Ibs.,  wall  cap.  Plate  XIII,  Figs.  1,  4;  8  and  9,  and  Plate  XIV,  Fig.  4. 
The  slight  inclination  of  deck  plates  is  to  be  accommodated  by  beveled  strips  on  tops  of  beams  finished  to  suit  the 
various  positions  and  consequent  inclinations. 


10 

Along  all  supports,  principal  or  secondary,  of  the  boat  deck,  the  plates  are  to  be  riveted  every  4  inches  on 
single  gauge  and  4  inch  pitch  staggered  on  double  gauge. 

Secondary  beams  of  10-inch  channels,  15  Ibs.,  under  tower  are  to  be  accurately  fitted,  finished,  coped  and 
fastened  in  accordance  with  drawings.  Plate  XIV,  Fig.  4. 

LIVING  ROOM  FRAME. — The  principal  beams,  8-inch  I's,  25y%  Ibs.,  framed  as  shown,  with  proper  stair 
opening,  forming  an  intermediate  floor  and  brace  system  in  the  first  section  of  circular  tower  construction,  are 
attached 'directly  to  and  supported  by  the  columns.  Plate  XV,  Fig.  1.  The  walls  at  this  level  are  stiffened  by  a 
3-inch  L,  the  horizontal  leg  of  which  is  flush  with  the  tops  of  beams  and  which  is  riveted  to  walls  between  studs 
with  %-inch  rivets,  4  inches  pitch,  thus  also  forming  a  rest  for  wooden  joists.  Plate  XV,  Fig.  1,  and  Plate  XVI, 
Figs.  9,  10  and  11. 

WATCH  BOOM  FLOOR  FRAME.— With  principal  beams  10  I  beams,  35  Ibs.,  delivering  their  loads  directly 
to  columns  and  secondary  6-inch  I  beams,  14%  Ibs.,  completing  braced  circle,  with  circular  10-inch  channel,  15  Ibs., 
forming  cap,  and  with  interior  groups  of  10-inch  channels  as  per  drawings  (Plate  XV,  Figs.  2  and  3,  and  Plate 
XVI,  Figs.  1,  2,  3  and  4),  furnishing  support  and  fastenings  for  wood  floor,  steel  plate  promenade  deck  and  for  the 
watch  room  wall  with  surmounting  lantern,  the  construction  details  for  riveting,  cutting,  fitting,  coping,  etc.,  must 
conform  to  requirements  exacted  for  other  similar  floors.  Note  the  ladder  attachments  to  frame  shown  on  special 
detail.  Plate  XII,  Fig.  11. 

LANTERN  FLOOB  FRAME. — This  frame  supporting  cast  iron  lantern  floor  and  deck  and  tower  consists  of 
principal  (5-inch  I's,  14%  Ibs.,  and  6-inch  circular  channel  cap,  13  Ibs.  (Plate  XV,  Fig.  4  and  Plate  XVII,  Figs.  1, 
2  and  3)  is  supported  upon  and  securely  attached  to  posts,  and  is  to  be  constructed  in  detail  with  all  special  features 
required  for  other  floors;  the  methods  of  attaching  cast  iron  shown  on  plans  to  be  carefully  followed.  Plate  XVII, 
Figs.  1,  2  and  8. 

THE   LANTEBN. — To   follow   standard   specifications  for  3d  order  lantern,  hereafter. 

FLOOB  COVERINGS. — The  engine  room,  boat  deck  and  watch  room  deck  are  to  have  steel  plate  coverings 
y%  inch  thick,  of  the  number  and  shapes  indicated  (Plate  XIII,  Figs.  4  and  12;  Plate  XIV,  Figs.  1  and  2;  Plate 
XV,  Fig.  3;  Plate  XVI,  Figs.  1  and  2),  all  joints  to  be  made  watertight  by  having  adjoining  and  abutting  sheets 
planed  and  fitted  tight  with  butt  strap  seats.  The  plates  at  joints  are  to  be  riveted  with  %-inch  rivets,  4  inches 
pitch,  countersunk  on  upper  side  and  at  contact  surfaces  with  supporting  frames  with  the  same  pitch  for  decks, 
and  6  inches  pitch  for  floors.  All  butt  straps  on  deck  floors  and  in  all  seams  of  walls  to  be  caulked.  The  cast 
iron  deck  and  floor  with  checkered  walking  surface  is  to  be  made  in  sections  as  shown  (Plate  XVII,  Figs.  1  and 
2,  6,  7,  8,  9  and  10),  each  joint  surface  being  planed  to  an  accurate  watertight  fit,  also  the  vertical  supporting  ribs 
are  to  be  planed  on  their  lower  or  bearing  surfaces.  All  fittings  for  attaching  floor  to  frame,  lantern  to  floor,  ladder 
to  floor,  sockets  for  fence  posts  and  trap  door  details,  are  to  correspond  with  drawings  (Plate  XIII,  Figs.  26  and 
27;  Plate  XVI,  Figs.  1,  2  and  4;  Plate  XVII,  Figs.  1,  2  and  9  and  10),  and  to  be  accurate  for  location  and  finish. 

WALL  COVERINGS. — The  entire  exterior  of  the  frame,  exclusive  of  openings,  is  to  be  covered  with  %-inch 
steel  plates,  of  dimensions  and  arrangements  indicated  (Plates  II  and  III),  general  elevations,  cut,  planed,  edges 
parallel  at  right  angles,  fitted,  punched  and  bent,  and  riveted  to  place  with  watertight  joints,  sealed  by  butt  straps. 
The  plates  are  to  be  riveted  with  %-inch  rivets  to  butt  straps,  4  inches  pitch  staggered,  to  all  studding,  posts, 
columns  and  caps  on  4  inches  pitch;  the  base  rings  of  engine  room  (Plate  XIII,  Figs.  7,  10  and  11),  kitchen  (Plate 
XIII,  Figs.  2,  3  and  5)  and  watch  room  walls  (Plate  XVI,  Figs.  1  and  2),  two  4  inches  by  4  inches  by  %  inch  square 
root  L's,  are  secured  to  wall  plates  with  %-inch  rivets,  4  inches  pitch.  All  openings  are  to  be  finished  with  planed 
edges  perfectly  smooth  and  true1. 


11 

At  each  inset  in  the  tower  elevations  a  projecting  cornice  coustruction  is  required  (Plate  XIII,  Figs.  1  and  27; 
Plate  XVI,  Figs.  1,  2  and  4,  and  Plate  XVII,  Figs.  1  and  2)  made  by  extending  the  deck  floor  plates  beyond  walls 
and  supporting  such  projection  by  steel  brackets  arranged  and  fastened  as  shown  (Plate  XIII,  Figs.  4,  2(1  and  27; 
Plate  XVI,  Figs.  1,  2  and  4,  and  Plate  XVII,  Figs.  1  and  2),  a  finish  being  given  by  small  angle  encircling  the 
plates  at  outer  edges.  On  boat  and  watch  room  decks  a  foot  guard  is  provided,  consisting  of  a  similar  angle  on  top 
of  plates  at  outer  edge,?,  bent  to  suit  and  fastened  as  shown.  Plate  XIII,  Fig.  2(>,  and  Plate  XVI,  Fig.  4.  The 
cast  iron  cornice  at  lantern  deck  carries  a  finish  mould  with  its  floor  members. 

DOORS  AND  SHUTTERS. — All  window  openings,  and  all  door  openings  above  engine  room  (the  engine 
room  doors  being  themselves  storm  doors,  Plate  XVIII,  Figs.  1  to  10)  are  to  be  provided  with  steel  protection 
shutters,  rolling  clear  from  openings  during  ordinary  weather,  which  are  to  be  made  in  accordance  with  drawings 
(Plate  XX,  Figs.  1  to  10,  and  Plate  XXI,  Figs.  1  to  7),  rectangular,  straight  and  smooth  edges,  bent  to  proper 
radius,  and  supplied  with  hangers,  stops,  bolts,  rings,  chains  and  bronze  rollers.  The  sills  or  thresholds  of  outside 
doors  are  to  be  of  east  iron,  the  details  of  which  are  found  on  drawings.  Plate  XVIII,  Figs.  2,  3,  4  and  8,  and 
Plate  XXI,  Figs.  1,  2  and  3. 

The  double  steel  frame  doors  for  engine  room  are  to  conform  to  the  details  (Plate  XVIII,  Figs.  1  to  10), 
particular  attention  being  given  to  the  accuracy  of  hanging,  fitting  and  securing  same,  whether  open  or  closed, 
especially  securing  rigidity  and  reducing  to  a  minimum  the  tendency  to  rattle  under  stress  of  weather. 

ANCHORAGE. — The  superstructure  is  secured  to  concrete  substructure  by  anchor  bolts  at  foot  of  each 
column  and  post  and  at  intervals  around  the  base  of  first  story  walls,  all  in  accordance  with  drawings.  Plate  XIII, 
Figs.  7,  10,  13,  14  and  15;  Plate  VI,  Fig.  1,  and  Plate  XIV,  Fig.  3.  Holes  will  be  left  in  the  concrete  into  which 
these  bolts  are  to  be  inserted  and  made  tight  by  grouting,  lead  or  sulphur.  Holes  in  circular  wall  angles  should 
correspond  with  these. 

RAILINGS. — Around  the  outside  edge  of  the  engine  deck,  including  protection  for  landing  platform,  the 
boat,  watch  room  and  lantern  decks,  are  to  be  constructed  two  chain  guard  rails,  strung  upon  wrought  iron  posts 
in  conformity  to  drawings.  See  Plates  II  and  III,  Plate  VI,  Fig.  1,  Plate  XII,  Figs.  1  and  2,  Plate  XIII,  Figs. 
27  and  28,  Plate  XVI,  Fig.  4,  Plate  XIX,  Figs.  1,  2  and  4,  for  number,  location  and  details.  Chains  for  all  decks 
and  for  landing  platform  excepting  engine  floor  deck,  must  be  so  arranged  as  to  admit  of  stripping  in  sections  of 
reasonable  lengths  and  weights.  The  chain  to  be  %-inch  iron,  the  posts  to  fit  closely  their  sockets  and  to  be 
provided  with  necessary  keys,  pins,  etc. 

VENTILATORS. — Suitable  adjustable  ventilators  to  be  provided  for  each  room  as  may  be  required  and 
designated. 

FLASHINGS. — All  openings  for  various  utilities,  as  pipes,  vents,  etc.,  must  be  made  watertight  by  methods 
indicated  on  drawings  (Plate  XIII,  Fig.  2(5),  or  as  may  be  approved  during  construction. 

FLAG  POLE. — A  staff  of  standard,  extra  strong,  galvanized  iron  pipe,  with  3-inch  butt  reduced  by  21/-)  inches 
to  iy-2  inches  at  tip,  with  a  total  length  of  32  feet,  finished  complete  with  brass  sheaves,  cap  and  ball.  A  suitable 
flag  halyard,  with  cleat,  to  be  furnished.  Flag  pole  to  be  fastened  -to  watch  room  and  lantern  deck  as  shown. 
Plates  II  and  III,  and  Plate  XVI,  Figs.  5,  (S  and  7. 

DERRICK. — For  handling  boat  and  supplies,  a  swinging  boom  derrick  is  to  be  furnished,  boom  to  be  selected 
stock,  straight  grained,  thoroughly  seasoned  Oregon  pine,  25  feet  long,  dressed  and  framed  to  sizes  and  fittings  shown 
(Plate  XXV,  Figs.  1,  8,  9,  12,  13  and  14),  with  large  coiling  cleats,  and  given  two  coats  of  linseed  oil  and  tar  before 


12 

being  taken  to  station.  Two  pairs  of  double  10-inch  blocks,  wood  shell,  swivel  hooks  on  lower  fall  block  only,  and 
10-inch  sheave  at  mast,  together  with  sufficient  SV^-inch  manila  rope  to  reave  to  hoisting  engine  in  engine  room, 
and  admit  of  use  of  full  hoist  and  swing  of  derrick,  are  to  be  furnished,  all  of  approved  make  and  design. 

The  method  of  attachment  of  boom  and  falls  to  frame  and  mechanism  for  controlling  direction  of  leads 
through  kitchen  walls  to  engine  room  below  is  clearly  shown  on  drawing  (Plate  XXV,  Figs.  1,  2  and  3),  and  is  to 
be  accurately  realized  in  the  construction.  The  sliding  shutter  behind  vertical  rollers  is  to  be  carefully  shaped, 
edges  planed  and  bent  to  admit  of  easy  movement  in  opening  and  shutting.  Plate  XXV,  Figs.  2,  3,  4  and  5. 

The  edges  of  the  slots  passing  the  leads  must  be  smooth,  true  and  rounded,  so  as  not  to  cut  rope  by  any 
accidental  contact.  All  sheaves  must  be  metaline  bushed  or  self-lubricating.  Guy  lines,  lashings,  cleats,  eye-bolts 
and  all  other  appliances  and  appurtenances  necessary  to  the  successful  use  of  the  derrick  to  be  furnished  as  required. 

BOAT. — The  contractor  will  furnish  a  suitable  and  strong  Whitehall  boat  about  20  feet  in  length  without 
more  than  5  feet  beam.  The  same  to  be  furnished  with  two  pairs  of  oarlocks  and  oars,  sail,  mast,  rudder,  and  all 
things  necessary  to  complete  boat,  with  blocks  and  tackle  for  raising  and  lowering  the  same  at  the  station.  Also 
canvas  cover,  cradle  on  bronze  castors,  lashings,  fastenings,  all  to  the  satisfaction  of  the  Light-House  Engineer. 
All  metal  trimmings  of  the  boat  to  be  bronze. 

STAIRS. — From  the  store  room  floor  to  the  living  room  a  series  of  steel  and  iron  stairs  are  to  be  provided,  three 
flights  in  all,  with  necessary  stringers,  step  brackets,  cast  iron  treads,  railings,  hangers,  fastenings,  etc.  Plate  XXII, 
Figs.  1  to  22.  All  well  openings  are  to  have  cast  iron  nose,  trim  of  design  like  step  nosing.  Plate  XXII,  Figs.  1 
to  4,  l(j  and  17.  Engine  room  to  kitchen  stairs  must  fit  accurately  the  position  indicated,  great  care  being 
required  in  forming  the  reverse  bends  in  the  10-inch  channel  strings,  and  they  must  be  properly  supported  about 
midway  by  rods  from  floor  above,  all  in  accordance  with  drawings.  Plate  XXII,  Figs.  2,  18  to  22.  The  orna- 
mental railings  are  to  be  in  neat,  workmanlike  finish,  and  to  conform  to  details  shown.  Plate  XXII,  Figs.  9  and 
10.  Pipe  railings  are  also  to  receive  studied  treatment  in  detail  and  in  place,  in  smoothness  of  finish,  symmetry  of 
exposed  threads,  etc.  Plate  XXII,  Fig.  4. 

All  cast  iron  treads  are  to  have  checkered  wearing  surfaces,  neat  in  fit,  of  various  shapes  to  suit  the  curves 
and  angles  in  stair  cases.  Plate  XXII,  Figs.  1,  2,  3,  7  and  8.  Under  sides  of  cast  iron  treads  must  in  all  cases 
fit  accurately  to  their  supports.  All  stairs  are  to  carry  from  floor  to  floor  in  steps  of  equal  risers  of  the  number 
indicated. 

LADDERS. — From  living  room  to  watch  room  and  lantern  are  wrought  iron  ladders,  to  be  made  as  per 
details  (Plate  XII,  Figs.  11,  12,  13  and  14:  Plate  XVII,  Figs.  9  and  10).  and  secured  at  top  to  steel  or  iron  work. 

FOG-SIGNAL    MACHINERY,    etc. 

The  machinery  for  operating  the  fog-signal  at  this  station  will  consist  of  two  Hornsby-Akroyd  oil  engines,  rated 
at  20  H.  P.,  each  with  an  air  compressing  outfit,  each  having  a  capacity  of  not  less  than  110  cubic  feet  per  minute. 
These  engines  are  expected  to  furnish  singly  sufficient  compressed  air  to  operate  a  10-inch  whistle,  blowing  with  a 
characteristic  of  3  three  seconds  blast  and  silent  intervals  of  27  seconds,  the  air  pressure  at  the  whistle  being 
70  Ibs.  per  square  inch. 

There  will  be  two  air  receivers,  a  high  pressure,  4  feet  diam.,  <>  feet  6  inches  high,  and  a  low  pressure,  4  feet 
diam.,  8  feet  high.  The  high  pressure  to  be  placed  in  the  store  room  under  the  engine  room,  and  the  low  pressure, 
to  be  suspended  in  the  engine  room  from  the  kitchen  floor  beams.  A  regulating  valve  will  be  placed  in  the  pipe 
joining  the  two  receivers,  to  keep  the  pressure  in  the  low  pressure,  from  which  the  whistle  is  supplied,  at  a 
constant  pressure. 


13 

The  whistle  valve  will  be  opened  and  closed  by  a  Crosby  Automatic  Signal  Apparatus.  This  apparatus  will 
be  furnished  in  duplicate.  The  two  will  be  fastened  to  a  board  of  suitable  material  and  finish,  and  set  up  and 
properly  connected  for  performing  the  functions  for  which  they  are  designed. 

The  two  Hornsby-Akroyd  engines,  and  the  Crosby  Automatic  machines  will  be  furnished  to  the  contractor, 
as  hereinbefore  mentioned,  but  all  receivers,  gauges,  valves,  pipes,  connections,  and  other  appliances  necessary  to 
the  proper  working  of  the  same  must  be  furnished  and  put  together  by  the  contractor. 

There  will  be  a  small  brass  pump,  a  duplicate  of  which  is  also  to  be  furnished,  placed  in  the  pump  room  at  the 
foot  of  the  concrete  stairs.  This  is  to  furnish  sea  water  for  cooling  the  engines  and  supplying  the  water  closet, 
located  in  the  room  below  the  engines.  The  pump  is  to  be  so  geared  that  it  may  be  operated  by  either  of  the 
engines,  or  by  hand,  as  may  be  desired. 

A  supply  tank  for  this  sea  water,  of  about  120  gallons,  will  be  placed  in  the  kitchen. 

An  arrangement  of  the  engines,  pipes,  and  general  connections  of  the  air  and  water  systems  of  the  station  is 
outlined  on  Plates  XXVI  and  XXVII.  This  will  be  adhered  to  as  far  as  practicable. 

HOISTING  ENGINE. — A  small  double-cylinder  hoisting  engine,  with  double  drums  and  gipsy  head  on  end 
of  shaft,  will  be  furnished  and  installed,  with   which  to  operate  the  derrick. 
Compressed  air  will  be  the  only  motive  power  used  at  the  station. 

WHISTLE. — A  10-inch  brass  whistle,  to  be  made  from  drawing  which  will  be  furnished,  must  be  supplied 
and  put  in  place  by  the  contractor. 

CONNECTIONS,  ETC, — All  piping,  connections,  fastenings,  cocks,  valves,  gauges,  tools,  implements,  etc., 
shown  upon  the  drawings,  or  which  may  be  required  as  necessary  to  the  successful  installation  and  operation  of 
this  machinery,  will  be  furnished  in  place  by  the  contractor. 

In  connection  with  this  machinery  the  contractor  will  furnish  a  small  sand  blast  outfit,  for  the  purpose  of 
cleansing  the  metal  material  of  the  station.  This  he  may  use  for  the  purpose  as  described  under  the  head  of 
painting. 

WATEE  CLOSET. — A  modern  water  closet  of  appropriate  and  approved  design,  to  be  selected  by  the  Light- 
House  Engineer,  must  be  furnished  and  put  in  place  in  the  room  below  the  engine  room.  Sea  water  will  be  used 
in  this  closet.  A  soil  pipe,  suitably  trapped  at  lower  end  with  bronze  back  valve,  will  be  provided,  leading  down 
through  the  concrete  base.  Into  this  the  soil  pipe  from  the  water  closet,  and  all  drain,  overflow  and  waste  pipes, 
will  lead.  Suitable  ventilation  must  be  provided  for  this  pipe. 

FURNITURE. — A  table,  cast  iron  white  enameled  sink,  hand  pump,  oil  stove  of  design  to  be  approved  by  the 
Light-House  Engineer,  set  up  in  place  in  thorough  working  order,  with  an  outfit  of  kitchen  utensils  with  three 
substantial  kitchen  chairs,  with  all  required  cupboards,  lockers,  shelves,  hooks,  etc.,  will  be  furnished  by  the  con- 
tractor for  the  kitchen. 

For  the  living  rooms  the  contractor  will  furnish  three  iron  bedsteads,  with  removable  wire  woven  mattresses 
of  form  and  dimensions  as  may  be  required,  three  small  tables  and  one  of  larger  size,  with  drawers,  five  arm  chairs, 
lockers,  drawers,  shelves,  hooks,  etc. 

It  is  understood  that  in  the  contract  price  is  included  the  cost  of  all  davits,  cleats,  eye-bolts,  ring-bolts, 
fastenings  of  every  kind  and  description  that  may  be  required  by  the  Light-House  Engineer  as  being  necessary  to 
the  complete  equipment  of  the  station. 


14 

PAINTING. — After  the  structure  is  erected,  and  before  any  preservative  whatever  is  placed  upon  the  metal, 
it  must  be  thoroughly  cleaned  of  everv  particle  of  scale,  rust  or  oxidation,  down  to  the  gray  metallic  surface. 
When  this  is  done  the  surface  must  immediately  be  covered  with  a  coating  of  red  lead  and  pure  linseed  oil.  In 
the  course  of  a  week,  when  this  has  become  thoroughly  dry  and  hard,  a  coat  of  red  lead  and  graphite,  in  equal  parts, 
ground  in  pure  linseed  oil,  will  be  put  on.  When  this  in  turn  has  become  dry  and  hard,  a  coat  of  white  lead  and 
linseed  oil  will  be  put  on,  to  be  followed,  when  dry,  with  a  second  coat  of  like  material. 

All  parts  of  the  structure,  both  outside  and  inside,  will  be  treated  in  this  manner,  excepting  that  the  last  two 
coats  of  the  engine  room  floor,  the  stairs  and  their  railings,  the  lantern  floor  and  all  decks  outside  the  walls  of  the 
structure,  shall  be  colored  with  a  black  pigment.  The  two  final  coats  of  the  guard  chains  and  their  posts  may  be 
lead-colored. 


SPECIFIC  ATTO  N  S 


FOB 


LANTERN    FOR    APPARATUS    OF    THE    THIRD    ORDER. 


The  lantern  is  shown  on  Plates  I  to  IX  of  lantern  plans.  It  is  to  be  circular  in  plan  and  composed  of  a  parapet, 
glass  sashes  with  helical  bars,  architrave,  roof  and  ventilator  and  provided  with  a  glass-paneled  door  which  will  give 
access  to  the  lantern  gallery. 

PARAPET. — The  circular  lantern  parapet  is  shown  on  Plate  VIII,  Figs.  1  to  9  and  18,  19,  and  22,  and  is 
composed  of  nine  castings,  seven  large  and  two  small.  They  must  be  sound  castings,  neatly  molded  and  of  'the 
proper  curvature.  They  are  to  be  finished  at  surfaces  of  contact  with  the  lantern  floor,  with  each  other,  the  door 
jambs  and  sill,  the  glass  sash,  filling  pieces  and  glass  stops  and  secured  to  the  lantern  floor  by  thirty-two,  and  to 
each  other  by  forty  %-inch  rough  bolts  through  drilled  holes.  Their  upper  flanges  are  to  have  %-inch  drilled  and 
reamed  holes  for  bolts  securing  the  glass  sashes  and  filling  pieces  and  the  vertical  flanges  of  the  small  plates  either 
side  of  the  door  opening  are  to  have  %-inch  drilled  and  reamed  holes  for  bolts  securing  the  sill  and  jambs.  Three 
of  the  large  plates,  and  both  of  the  small  plates,  are  to  be  provided  with  air  channels  for  the  registers,  which  are 
to  be  faced  at  surfaces  of  contact  with  valve  seats,  nuts,  and  perforated  plates,  and  drilled  and  tapped  for  the  5-16- 
inch  screws  securing  the  same.  The  plain  parapet  plates  are  to  have  a  small  rib  under  upper  flange,  as  shown 
by  dotted  lines  in  Fig.  1. 

AIR  RFGISTER. — The  brass  air  registers  for  the  five  parapet  plates  mentioned  above  are  shown  on  Plate 
VIII,  Figs.  17  to  22,  and  consist  each  of  a  valve.,  valve  seat,  valve  stem,  nut,  and  perforated  plate.  The  valve  must 
be  a  good,  sound,  neatly  molded  casting,  finished  all  over,  nicely  drilled  for  the  valve  stem,  on  which  it  must 
easily  turn  when  in  place,  and  neatly  fitted  to  the  raised  surface  of  the  valve  seat  upon  which  it  must  fit  perfectly 
airtight  when  closed. 

The  valve  seat  must  be  a  good,  sound,  neatly  molded  casting,  finished  all  over,  and  secured  to  the  parapet 
plates  by  six  5-16-inch  countersunk  brass  screws.  It  must  be  neatly  fitted  to  the  inside  lining  of  the  lantern. 

The  valve  stem  and  handle  must  be  a  good,  sound,  neatly  molded  casting,  finished  all  over,  and  neatly  chased 
at  one  end  for  the  nut.  The  space  between  the  handle  and  the  collar  (the  latter  is  to  be  screwed  on  and  pinned) 
will  form  the  journal  for  the  valve. 

The  nut  must  be  a  good,  sound  casting,  finished  all  over,  neatly  chased  for  the  valve  stem,  and  secured  to  the 
parapet  plates  by  four  5-16-inch  countersunk  brass  screws. 

The  perforated  plate,  which  can  be  of  rolled  brass,  must  be  provided  with  eighty-seven  i/4-inch  neatly  spaced 
and  drilled  holes,  as  shown;  it  must  be  of  the  proper  curvature  and  nicely  fitted,  and  secured  by  six  5-16-inch 
round  head  brass  screws  to  the  parapet  plates. 

GLASS  SASH. — The  bronze  glass  sashes,  eighteen  in  number,  are  shown  on  Plate  V,  Figs.  1  to  25,  and  Plate 
VI,  Figs.  1  and  2.  They  must  be  good,  sound  castings,  carefully  and  neatly  molded,  true  to  pattern  and  correct  in 
curvature.  They -are  to  be  finished  at  surfaces  of  contact  with  the  parapet  plates,  door  jambs,  glass  stops  and 

(15) 


]6 

architrave  castings  and  faced  where  they  abut  each  other,  the  filling  pieces  and  door  lintel;  the  rabbets  receiving  the 
glass  panes  will  not  be  finished  beyond  that  necessary  to  touch  them  up  with  a  file,  they  must  therefore  have  sharp, 
clean,  and  true  edges  after  leaving  the  mold  and  must  not  vary  in  depth  and  width  from  the  dimensions  shown  on 
the  drawings.  The  sashes  are  to  have  drilled,  reamed,  and  countersunk  holes  through  which  they  will  be  secured 
to  the  parapet  and  architrave  cat-tings,  by  thirty-four  turned  bolts  with  countersunk  heads  as  shown  on  Plate  V, 
Fig.  29,  and  they  are  to  be  secured  to  each  other  at  their  abutting  faces  by  fifty-two  9-16-inch  machine  screws 
finished  all  over  as  shown  on  Plate  V,  Fig.  30,  and  the  holes  for  these  screws  are  to  be  drilled,  tapped,  counter- 
drilled  and  reamed  as  shown  on  the  drawings  in  order  to  suit  the  position  of  the  sashes. 

The  sashes  either  side  of  the  door  opening  are  to  be  drilled  and  tapped  for  the  %-inch  screws  securing  the 
jambs.  See  also  Plate  IV,  Fig.  13. 

The  upper  sashes  above  the  door  opening  are  to  be  drilled  as  shown  on  Plate  VI,  Figs.  1  and  2,  for  the  i/^-inch 
screws  securing  the  jambs.  See  also  Plate  IV,  Fig.  12. 

All  the  sashes  are  to  be  drilled  deep  enough  and  correctly  tapped  for  the  i/^-inch  and  %-inch  brass  tap  bolts 
securing  the  (a)  glass  stops. 

The  helical  parting  strips  are  to  be  neatly  cut  out  as  shown,  in  order  that  the  i/i-inch  tap  bolts  may  have  a 
secure  hold  within  the  bars. 

Care  must  be  exercised  in  machining  and  setting  the  glass  sashes  in  place  in  order  that  the  panes  may  be 
interchangeable,  and  the  contractor  must  furnish  a  template  to  the  glass  benders  by  which  the  panes  and  half  panes 
are  to  be  cut,  as  shown  on  Plate  VI,  Figs.  36  to  38. 

The  template  must  be  correctly  cut  and  bent  and  stiffened  by  battens  in  order  to  hold  its  shape.  Two  lines  at 
right  angles  to  each  other  must  be  scribed  off  on  the  convex  side,  to  which  the  half  panes  must  conform  when  they 
are  applied  to  the  template. 

FILLING  PIECES. — The  bronze  filling  pieces,  seventeen  in  number,  are  shown  on  Plate  V,  Figs.  26  to  28. 
They  must  be  good,  sound  castings,  carefully  and  neatly  molded,  true  to  pattern  and  correct  in  curvature.  They 
are  to  be  finished  at  surfaces  of  contact  with  the  parapet  plates  and  architrave  castings  and  faced  where  they 
abut  the  glass  sashes.  The  rabbets  receiving  the  glass  panes  will  be  as  specified  above  for  the  sashes.  The  filling 
pieces  will  be  secured  to  the  parapet  and  architrave  castings  by  sixty-eight  turned  bolts,  as  shown  on  Plate  V, 
Fig.  29,  through  drilled,  reamed,  and  countersunk  holes,  and  they  are  to  be  drilled  and  tapped  for  the  14-inch 
tap  bolts  securing  the  glass  stops  in  the  manner  specified  for  the  sashes. 

DOOR. 

5 

The  door  by  which  the  lantern  gallery  is  accessible  is  shown  in  detail  on  Plate  IV,  Figs.  1  to  15,  Plate  VI, 
Figs.  1  and  2,  and  Plate  VII,  Figs-,  1  to  35,  and  will  consist  of  two  jambs,  a  sill,  a  lintel,  and  a  door  with  its  locks 
and  fixtures,  as  follows: 

JAMBS. — The  two  jambs,  one.  right  and  one  left,  are  shown  on  Plates  IV  and  VI.  They  must  be  good,  sound 
castings, neatly  molded  and  true  to  pattern.  They  are  to  be  finished  at  surfaces  of  contact  with  the  sill,  parapet  plates, 
glass  sashes,  glass  stops,  and  lintel,  and  the  rabbets  neatly  and  correctly  planed  for  the  door  and  recessed  for  the 
weather  strip.  They  must  be  correctly  fitted  to  the  sill  below  on  which  they  are  to  rest;  drilled,  reamed,  and 
countersunk  for  the  %-inch  turned  bolts  and  screws  securing  them  to  the  parapet  plates  and  glass  sashes,  neatly 
fitted  to  the  upper  glass  sash  and  secured  thereto  by  ^4-inch  countersunk  brass  screws,  as  shown  on  the  drawings, 
and  then  fitted  and  secured  to  the  lintel.  The  upper  part  of  one  of  the  jambs  is  to  be  drilled  and  tapped  for  the 
J/^-inch  screws  securing  the  upper  hinge  for  the  door,  and  the  upper  part  of  both  jambs  is  to  be  drilled  and  tapped 
for  the  %-inch  screws  securing  the  fishplates  and  the  %-inch  turned  tap  bolts  securing  the  lintel. 


a  See  clause  relating  to  tap  bolts  under  Glass  Stops,  page  21. 


17 

SILL. — The  sill  is  shown  on  Plate  IV,  and  must  be  a  good,  sound  casting,  neatly  molded  and  of  the  proper 
curvature.  It  must  be  finished  at  surfaces  of  contact  with  the  lantern  floor,  the  parapet  plates,  the  jambs  and  the 
door,  and  neatly  recessed  for  the  weather  strip.  It  is  to  be  secured  to  the  lantern  floor  by  four  %-inch  rough  bolts 
through  drilled  holes  and  to  the  parapet  plates  by  four  %-inch  turned  bolts  through  drilled  and  reamed  holes. 

LINTEL. — The  lintel  is  shown  on  Plates  IV  and  VI,  and  must  be  a  good,  sound  casting,  neatly  molded  and  of 
the  proper  curvature.  It  is  to  be  finished  at  surfaces  of  contact  with  the  jambs,  the  rain  drip,  glass  stops,  fishplates 
and  door,  and  neatly  recessed  for  the  weather  strip.  It  must  be  nicely  fitted  between  the  jambs  and  secured  thereto 
by  wrought-iron  fishplates,  tapped  for  %-inch  countersunk  brass  screws  and  drilled  and  reamed  for  the  %-inch 
turned  tap  bolts.  It  is  to  be  neatly  tapped  in  the  manner  specified  above  for  the  glass  sash  for  the  tap  bolts 
securing  the*  rain  drip. 

After  the  pieces  mentioned  'above  have  been  assembled  and  secured  in  place  they  must  form  a  perfect  rabbet 
for  the  door  and  the  cut  made  for  the  weather  strip  must  present  an  unbroken  recess  all  around  the  opening.  The 
weather  strip  is  to  be  of  the  best  quality  of  rubber,  in  one  piece  if  practicable,  14  by  5-1(5  inch  in  section.  A 
duplicate  piece  is  to  be  furnished  protected  from  deterioration  for  future  use. 

DOOK. The  door,  which  is  to  be  in  two  castings  bolted  together,  is  shown  on  Plate  IV.  They  must  be  good 

and  sound,  carefully  and  neatly  molded,  true  to  pattern  and  of  the  proper  curvature.  They  are  to  be  finished  at 
surface  of  contact  with  each  other,  the  glass  stops,  the  upper  glass  pane  and  the  door  rabbets,  and  secured  to  each 
other  by  four  %-inch  turned  bolts  (and  faced  washers)  through  drilled,  reamed,  and  countersunk  holes. 

The  lower  section  of  the  door  is  to  be  provided  with  two  panels  of  i/g-inch  sheet  steel  secured  in  place  by  14-inch 
button  head  rivets  and  round  head  screws  as  shown,  spaced  not  more  than  2  inches  apart;  but  the  button  head 
rivets  must  be  replaced  at  the  hinges  by  round  head  screws  from  the  inside  which  must  not  interfere  in  any  way 
with  the  screws  securing  the  hinges.  The  %  by  1  by  1%  inch  angles  are  to  be  neatly  bent  where  required  and 
attached  to  the  door  by  l/4-inch  round  head  screws;  one  of  the  vertical  angles  must  be  provided  with  a  small  car, 
forged  on  to  take  the  5-16-inch  screws  securing  the  fitting  piece.  Plate  VII,  Figs.  12  to  16.  The  battens  of  the 
door  lining  are  to  be  of  the  sizes  shown,  neatly  bent  and  secured  by  i/^-inch  round  head  screws  except  under  the 
fitting  piece  of  the  lock  case,  where  they  may  be  counter-sunk,  and  they  must  also  be  neatly  fitted  to  the  lower 
locking  rod  bearing  and  all  adjoining  pieces.  The  lower  section  of  the  door  is  to  be  drilled  and  reamed  for  the 
passage  of  the  pinion  shaft,  and  the  boss  on  the  outside  faced  for  the  handle.  It  is  also  to  be  drilled  for  the 
9-16-inch  bolts,  securing  the  pulling  handles.  The  upper  section  of  the  door  is  to  be  neatly  tapped  for  the  i/4-inch 
tap  bolts  and  screws  securing  the  glass  stops  in  the  manner  already  specified  for  the  glass  sashes,  and  provided  in 
the  pane  opening  with  proper  brass  strips  for  the  glass  pane,  securely  fastened  in  place  by  14-inch  countersunk 
screws  spaced  not  more  than  6  inches  apart.  The  finishing  strip  on  the  outside  of  the  door  will  spread  out  under 
the  tipper  hinge  as  a  facing  pad  for  the  same. 

Both  parts  of  the  door  are  to  be  neatly  drilled  and  tapped  for  the  %-inch  brass  countersunk  screws  securing 
the  hinges. 

NOTE. — If  the  contractor  desires  to  cast  the  door  in  one  piece,  including  the  outside  panel   in   the  lower  portion   and   the 
rabbets  for  the  glass  pane  in  the  upper  part  instead  of  proceeding  iu  the  manner  specified  above,  he  must  refer  to  fig.  18,  plate  III 


HINGES. — The  brass  hinges,  three  in  number,  are  shown  on  Plate  VII,  Figs.  1  to  7.  Those  supporting  the 
lower  section  of  the  door  are  to  be  right  and  left  hand,  as  shown  on  Plate  IV,  Fig.  2.  They  must  be  good,  sound 
castings,  finished  all  over,  neatly  drilled  for  the  finished  steel  pins,  which  are  to  be  fastened  in  place  in  the  manner 
shown  on  the  drawings.  The  leaves  of  the  hinges  are  to  be  secured  to  the  parapet  plates  and  door  by  ten  i/^-inch 
countersunk  brass  screws  on  each  side,  and  the  lower  edge  of  the  bottom  hinge  will  form  a  neat  continuation  of  the 
rain  drip  as  shown. 

The  upper  hinge  must  be  a  good    sound  casting,  finished  all  over,  neatly  drilled  for  the  finished  steel  pin. 


18 

which  is  to  be  secured  as  specified  above.  It  is  to  be  fastened  to  the  jamb  and  the  door  by  eight  Vk-incn  brass 
countersunk  screws,  and  the  door  leaf  of  the  hinge  will  form  a  continuation  of  the  vertical  glass  stop  on  the  upper 
section  of  the  door. 

LOCK. — The  door  will  be  secured  in  the  rabbets  by  two  steel  rods  thrown  in  opposite  directions  by  a  steel 
pinion.  They  are  to  be  finished  all  over  and  provided  with  a  neatly  cut  rack  on  the  lock  case  end,  as  shown  on 
Plate  VII,  Figs.  30  to  32. 

The  steel  pinion  and  shaft  are  shown  on  Plate  VII,  Figs.  28  and  29.  They  are  to  be  finished  all  over  and 
the  shaft  chased  at  both  ends  for  the  handles. 

The  brass  handles,  two  in  number,  are  sho\vn  on  Plate  VII,  Figs.  26,  27,  and  33  to  35.  They  must  be  sound, 
neatly  molded  castings,  finished  all  over  and  tapped  for  the  ends  of  the  pinion  shaft  to  which  one  is  to  be  pinned, 
and  the  other  secured  by  a  faced  nut  as  shown. 

The  lock  case  is  shown  on  Plate  VII,  Figs.  22  to  25.  It  must  be  a  good,  brass  casting,  finished  all  over,  and 
secured  to  the  fitting  piece  by  four  5-1 6-inch  countersunk  brass  screws  each. 

The  brass  fitting  piece  for  the  lock  case  is  shown  on  Plate  VII,  Figs.  12  to  16.  It  must  be  a  good,  sound 
casting,  finished  all  over,  except  inside,  neatly  fitted  to  the  door  lining,  battens  and  door  ledge,  and  secured  by  two 
5-16-inch  countersunk  brass  screws,  tapped  for  the  5-16-inch  screws  securing  the  lock  case,  and  drilled  and  reamed 
for  the  passage  of  the  pinion  shaft. 

The  upper  and  lower  bearings  for  the  rods  are  shown  on  Plate  VII,  Figs.  17  to  21.  They  must  be  good,  sound, 
brass  castings,  finished  all  over,  drilled  for  the  passage  of  the  rods,  and  carefully  secured  to  the  door  by  nine  i/4-inch 
countersunk  brass  screws  each. 

The  door  is  to  be  provided  also  with  inside  and  outside  handles  as  shown  on  Plate  I,  Figs.  1,  2,  8  and  9,  and 
Plate  IV,  Figs.  1  to  5.  They  must  be  good,  sound,  neatly  molded  brass  castings,  finished  all  over,  and  securely 
attached  to  the  door  by  two  9-16-inch  finished  bolts  through  gas-pipe  separators  and  faced  nuts. 

The  rain  drip  for  the  bottom  of  the  door  (Plate  VII,  Figs.  8  to  11)  must  be  a  good,  sound,  neatly  molded  brass 
casting,  finished  at  surfaces  of  contact  and  neatly  fitted  to  hinge  and  door  to  which  it  is  to  be  secured  by  four 
i/^-inch  brass  tap  bolts. 

ARCHITRAVE. — The  circular  lantern  architrave  is  composed  of  nine  castings,  as  shown  on  Plate  II,  Figs.  24 
to  30.  They  must  be  good  and  sound,  neatly  molded  and  correct  in  curvature,  and  are  to  be  finished  at  surfaces  of 
contact  with  each  other,  the  glass  sash,  the  filling  pieces,  the  glass  stops  and  the  roof  plates.  They  will  be  secured 
to  the  glass  sash  and  filling  pieces  by  %-inch  turned  bolts  through  drilled  and  reamed  holes,  to  each  other  by 
eighteen  %-inch  rough  bolts  through  drilled  holes,  and  drilled  for  the  %-inch  rough  bolts  securing  the  roof 
castings.  Each  casting  will  be  provided  with  a  rib  in  the  center  to  which  the  battens  securing  the  steel  lining  will 
be  fastened  and  a  boss  cored  for  the  passage  of  a  %-inch  radial  rod  and  faced  on  the  outside  for  the  nut. 

ROOF. — The  conical  lantern  roof  is  shown  on  Plate  II,  Figs.  9  to  14,  and  will  be  composed  of  nine  castings, 
which  must  be  good  and  sound,  neatly  molded,  and  true  to  pattern.  They  are  to  be  finished  at  surfaces  of  contact 
with  each  other,  with  the  architrave  and  the  ventilator  molding,  and  are  to  be  secured  to  the  architrave  by 
thirty-six  and  to  each  other  by  eighty-one  %-inch  rough  bolts  through  drilled  holes,  and  drilled  for  the  %-inch 
bolts  securing  the  molding.  All  the  plates  are  to  be  provided  with  two  bosses  each,  drilled  as  shown  and  faced  on 
the  outside  for  the  collar  of  the  roof  railing  stanchion. 

The  roof  railing  is  shown  on  Plate  II,  Figs.  20  to  23,  and  will  be  composed  of  eighteen  stanchions  and  six  pieces 
of  railing,  all  of  wrought  iron.  The  stanchions  are  to  be  drilled  for  the  railing  and  drilled  and  tapped  for  the 
5-16-inch  countersunk  screws  securing  the  same;  they  are  to  be  turned  below  for  a  snug  fit  into  the  roof  plate 
bosses,  faced  under  the  collar,  and  provided  with  faced  nuts  and  washers  as  shown  on  the  drawings. 

The  railings  are  to  be  neatly  bent  to  the  proper  radius,  scarfed  at  their  ends,  and  drilled  for  the  5-16-inch 
screws  securing  them  in  the  stanchions. 


19 

MOLDING. — The  ventilator  molding  is  shown  on  Plate  II,  Figs.  5  to  8.  It  must  be  a  good,  sound  casting, 
neatly  molded,  and  true  to  pattern.  It  is  to  be  finished  at  surfaces  of  contact  with  the  roof  castings  and  the 
ventilator  ball,  and  is  to  be  secured  to  the  roof  by  nine  %-inch  rough  bolts  through  drilled  holes. 

VENTILATOR  BALL. — The  ventilator  ball,  shown  on  Plate  II,  Figs.  1  to  4,  must  be  a  good,  sound  casting, 
neatly  molded,  turned  out  and  faced  at  surfaces  of  contact  with  the  molding  below.  The  upper  boss  is  to  be  tapped 
and  faced  for  the  pinnacle,  and  the  lower  part  of  the  ball  provided  with  openings  as  shown. 

The  brass  pinnacle  is  to  be  finished  all  over,  chased  at  one  end  for  the  ventilator  ball. 

EOOP  AND  PARAPET  LINING.— The  interior  of  the  lantern  roof  is  to  be  lined  as  shown  on  Plate  I,  Fig.  3, 
and  Plate  VIII,  Fig.  16,  with  nine  sheets  of  zinc  1-32  inch  thick,  fastened  to  the  flanges  of  the  roof  castings  by 
pinching  strips  of  3-32  by  11/4-inch  hoop  iron  and  ^4-inch  round  head  brass  screws  spaced  staggered  not  more 
than  8  inches  apart  from  center  to  center.  The  upper  ends  of  the  sheets  will  be  pinched  to  the  roof  plates  by  a 
rosette  casting,  their  lower  ends  will  pass  back  of  the  ribs  !/2  incn  as  shown  on  Plate  VIII,  Fig.  16,  and  be  supported 
by  the  steel  lining. 

The  vertical  portion  of  the  roof  plates  and  architrave  above  the  glass  sashes  and  filling  pieces  are  to  be  lined 
on  the  interior  with  nine  pieces  of  i/s-inch  sheet  steel  as  shown,  the  plates  must  be  neatly  bent  and  fitted  in  place 
and  secured  at  the  bottom  by  the  brass  stops  and  to  the  vertical  ribs  of  the  architrave  and  the  flanges  of  the  roof 
plates  by  Vs  by  IVi-inch  pinching  strips  of  hoop  iron  and  ^4-inch  round  head  brass  screws,  eight  to  each  strip. 
The  14  by  li/j-inch  battens  at  the  upper  edges  of  the  plates  are  to  be  secured  by  ^-inch  button  head  rivets  spaced 
not  more  than  8  inches  apart  and  then  neatly  chamfered  as  shown. 

The  interior  sides  of  the  parapet  castings  are  to  be  lined  with  ten  pieces  of  %-inch  sheet  steel,  seven  large,  two 
small,  and  a  piece  at  the  sill,  as  shown  on  the  drawings.  They  imist  be  neatly  curved  and  fitted  in  place,  secured 
by  %  by  114 -inch  hoop  iron  pinching  strips  and  14 -inch  brass  round  head  screws  spaced  staggered  not  more  than 
8  inches  apart  from  center  to  center.  The  upper  ends  of  the  sheets  are  provided  with  14  by  l^-inch  hoop  iron 
battens  fastened  by  ^-inch  button  head  rivets  spaced  not  more  than  8  inches  apart;  the  lower  ends  are  secured  by 
the  washboard.  Five  of  the  plates  (three  large  and  two  small)  are  to  be  neatly  cut  out  for  the  valve  seat  of  the  air 
registers,  as  shown  on  Plate  VIII,  Figs.  19  and  22. 

All  the  sheet  metal  work  specified  as  well  as  the  panels  specified  for  the  door  must  be  free  from  indentations, 
and  fitted  in  a  neat  and  workmanlike  manner. 

ROSETTE. — The  rosette  casting  mentioned  above  is  shown  on  Plate  III,  .Figs.  1  to  4.  It  must  be  a  good, 
sound  casting,  neatly  molded,  with  bosses  faced  for  the  collars  and  drilled  and  tapped  for  the  suspension  rods.  It 
is  also  to  be  drilled  for  the  stud  securing  it  to  the  roof  and  faced  for  the  nut,  and  it  must  be  neatly  fitted  to  the 
pinching  strips  of  the  zinc  lining. 

The  cast  iron  beam  for  the  rosette  must  be  good  and  sound,  and  cored  for  IVs-inch  stud,  which  must  be  neatly 
riveted  in  while  hot.  It  will  be  provided  with  a  faced  nut. 

WASHBOARD. — The  washboard  castings,  nine  in  number,  are  shown  on  Plate  IV,  Figs.  16  and  17.  They 
must  be  good  and  sound,  neatly  molded  and  of  the  proper  curvature.  They  are  to  be  neatly  fitted  to  each  other, 
the  lantern  floor  and  the  lining  and  secured  to  the  latter  by  ten  5-16-inch  countersunk  screws  each. 

SPIDER  FRAME. — The  spider  frame,  which  is  to  be  of  wrought  iron,  is  shown  on  Plate  III,  Figs.  5  to  12. 
The  suspension  rods  shown  in  Fig.  12  must  be  neat,  straight  forgirigs,  threaded  at  both  ends,  and  provided  at  one 
end  with  a  faced  collar  and  at  the  other  with 'faced  nuts. 

The  radial  rods,  shown  by  figs.  .~>  and  S  to  11,  must  be  neatly  forged  in  two  pieces  each.  They  are  to  be 
threaded  where  shown  and  provided  with  faced  nuts;  they  are  to  be  neatly  drilled  and  faced  for  the  suspension 


20 

rods,  and  drilled  for  the  pins  securing  the  two  parts  together,  the  latter  to  be  provided  with  split  pins.  The  cast 
iron  washers  are  to  be  faced  where  they  come  in  contact  with  the  faced  shoulders  of  the  forks,  and  they  must  be 
neatly  fitted  to  the  lining  and  pinching  strips  as  shown. 

The  spider  ring  (Figs.  5  to  7)  is  to  be  turned  all  over;  it  must  be  accurately  drilled  for  the  radial  rods  and 
drilled  and  tapped  for  the  %-inch  screws  securing  the  lens  bearings.  The  four  lens  bearings  (Figs.  25  and  26) 
must  be  sound  brass  castings,  finished  all  over,  provided  with  two  %-inch  steel  set  screws  and  secured  to  the  upper 
face  of  the  ring  by  two  %-inch  countersunk  brass  screws  each. 

TIN  CONE.— A  tin  cone,  shown  on  Plate  III,  Figs.  13,  23  and  24,  neatly  made  of  IXXX  tin,  with  locked, 
flattened,  and  soldered  seams,  is  to  be  furnished  and  fitted  to  the  spider  frame.  The  cone  is  to  be  stiffened 
around  its  openings  by  a  14-inoh  steel  wire,  and  is  to  be  secured  to  a  ring  made  of  14  by  2-inch  flat  iron  by  nine 
i/4-inch  round  head  brass  screws.  Small  nipples  are  to  be  soldered  to  the  cone  at  places  where  it  is  penetrated  by 
the  suspension  rods.  A  hood  made  of  the  same  material  and  in  the  same  manner  as  specified  above,  supported  by  four 
galvanized  iron  standards,  is  to  be  fitted  to  the  cone  as  shown. 

SPRING  CURTAINS.— The  curtain  fixtures  are  shown  on  Plate  I,  Figs.  3  and  7,  Plate  III,  Figs.  13  to  22, 
and  Plate  VIII,  Fig.  16. 

The  fourteen  hangers,  shown  on  Plate  III,  Figs.  13  to  22,  must  be  neatly  molded  brass  castings  finished  all  over 
except  beneath; 'they  are  to  be  neatly  drilled  or  slotted  to  suit  the  ends  of  the  rollers  and  accurately  spaced  and 
secured  to  the  steel  lining  by  three  ^-inch  round  head  brass  screws  each. 

The  rollers,  1  inch  in  diameter,  must  be  of  a  good  quality  of  block  tin  free  from  all  defects  and  thoroughly 
japanned  inside  and  out  before  attachments  are  secured.  They  are  to  be  provided  at  one  end  with  a  simple 
journal  and  at  the  other  with  the  best  quality  of  spring  ratchet  attachment  both  of  which  are  to  be  securely  fastened 
concentric  to  the  rollers.  The  rollers  must  also  be  perfectly  straight  and  round  and  provided  with  a  groove  or 
slot  along  their  length  in  which  the  curtains  are  to  be  secured. 

The  curtains  are  to  be  of  the  best  quality  of  Irish  linen  of  the  widths  shown  on  the  drawings  and  7  feet 
6  inches  long.  They  must  be  neatly  and  strongly  hemmed  around  all  their  edges,  securely  fastened  to  the  rollers 
and  provided  at  their  lower  edges  with  a  nickel-plated  brass  curtain  rod,  %  by  %  inch,  to  which  must  be  strongly 
attached  two  nickel-plated  brass  pulling  rings  each. 

The  arrangement  of  the  curtains  is  such  that  when  in  place  the  upper  and  shorter  ones  will  overlap  the  lower 
and  longer,  as  shown  on  the  drawings.  The  spring  rollers  mentioned  above  must  be  strong  enough  to  take  up 
easily  the  whole  length  of  the  curtain,  which  must  roll  evenly,  neatly,  and  closely  upon  the  roller,  and  must  not 
be  over  2%  inches  in  diameter  when  the  length  has  been  taken  up. 

GLASS  STOPS. — The  glass  stops  for  the  lantern  are  to  be  made  of  brass  and  they  must  be  good,  sound,  neatly 
molded  castings,  finished  at  all  surfaces  of  contact  with  each  other,  with  the  glass  sash,  the  filling  pieces,  the 
parapet  plates,  the  architrave  door,  jambs,  and  lintel,  and  neatly  drilled  and  faced  for  the  tap  bolts. 

They  are  shown  on  Plate  VI,  Figs.  3  to  33,  and  Plate  VIII,  Figs.  10  to  13,  and  will  consist  of  the  upper  and 
lower  curved  stops  (Figs.  22  and  23)  at  the  architrave  and  parapet  plates,  separated  from  each  other  horizontally 
by  the  upper  and  lower  small  stops  (Figs.  3  to  7  and  17  to  21,  which  they  must  neatly  abut.  The  small  glass  stops 
shown  by  Figs.  8  to  16,  Plate  VI,  and  Figs.  10  to  13,  Plate  VIII,  must  have  the  shapes  shown  .thereon  and  are  to 
act  as  fishplates  at  the  joints  between  the  glass  sashes.  Those  shown  on  Plate  VIII,  Figs.  10  to  13,  are  to  be 
provided  with  handles,  which  are  to  be  finished  all  over.  The  glass  stop  shown  on  Plate  VI,  Figs.  24  to  28,  will 
also  form  a  rain  drip  above  the  door,  and  it  must  neatly  abut  the  small  glass  stop  shown  on  Plate  VI,  Fig.  15. 

The  helical  glass  stops  shown  on  Plate  VI,  Figs.  29  to  31,  are  to  be  secured  to  the  helical  bars  of  the  glass  sash 
and  must  correctly  abut  the  small  glass  stops  at  their  ends. 

The  vertical  glass  stops  each  side  of  the  door  are  shown  on  Plate  VI,  Figs.  32  and  33.  One  of  them  must  be 
notched  out  and  accurately  fitted  to  the  hinge  on  the  upper  part  of  the  left-hand  jamb. 


21 

The  glass  stops  for  the  door  are  shown  in  section  on  Plate  IV,  Figs.  9,  10  and  13.  They  are  four  in  number,  two 
curved  and  two  straight — one  of  the  latter  must  be  in  two  pieces  on  account  of  the  hinge — and  all  of  them  are  to 
be  secured  to  the  door  by  at  least  five  i/4-inch  tap  bolts  on  each  side.  They  must  neatly  abut  the  hinge,  and  each 
other  where  they  miter  at  the  corners. 

The  brass  stops,  shown  on  Plate  VI,  Figs.  34  and  35,  must  be  attached  to  the  fitting  pieces  and  sashes  below  the 
architrave  castings  on  the  inside  of  the  lantern,  as  shown  on  Plate  VIII,  Fig.  16. 

All  the  tap  bolts  for  securing  the  glass  stops  are  to  be  of  brass,  and  well  made.  They  must  screw  up 
moderately  tight  with  a  light  wrench  to  a  good  firm  bearing  upon  the  stops  when  the  latter  are  in  place. 

All  the  glass  stops  mentioned  above  must  be  attached  to  the  lantern  in  a  neat  and  workmanlike  manner,  and 
show  fair  and  continuous  lines  all  around  the  structure  without  breaks  at  the  abutting  joints. 

LANTERN  LADDER. — A  ladder  made  in  accordance  with  the  drawings  on  Plate  VII,  Figs.  36  to  39,  of 
%  by  2-inch  steel  stringers,  with  double  iron  rounds,  faced  at  the  shoulder  and  riveted  to  the  stringers,  is  to  be 
furnished. 


LAISTTERIST    GLASS. 

GENERAL. — The  glass  for  the  third-order  lantern  is  shown  on  Plate  IX,  Figs.  1  to  24,  and  will  consist  of 
fifty-four  panes  of  curved  glass,  %  incn  'u  thickness.  A  variation  of  not  over  l-32d  of  an  inch  will  be  allowed  on 
either  side  of  the  thickness  called  for. 

LANTERN  GLASS. — The  lantern  glass  will  consist  of  twenty-eight  full  panes  (Figs.  1  to  6),  three  vertical 
half  panes  for  either  side  of  door  (Figs.  7  to  12),  twenty-one  horizontal  half  panes  (Figs.  13  to  18),  and  two  panes 
for  the  door  (Figs.  19  to  24). 

The  panes  must  be  of  the  best  quality  of  selected  plate  glass,  as  stated  above;  their  surfaces  must  be  perfectly 
smooth  and  highly  polished,  free  from  distorted  reflections,  flaws,  or  cloudiness.  The  panes  must  be  neatly  and 
correctly  cut  to  the  dimensions  shown  on  the  drawings  and  bent  as  shown.  They  must  be  thoroughly  annealed 
after  bending,  and  allowances  must  be  made  and  the  proper  precautions  taken  before  annealing  in  order  that  the 
panes  may  be  of  the  proper  shape,  form,  and  curvature  after  the  final  cooling.  The  panes  must  be  interchangeable, 
and  must  conform  in  every  respect  to  the  templets  furnished  to  the  glass  benders  by  the  contractor  for  the  lantern. 

PANES  REQUIRED. — The  number  of  panes  mentioned  above  and  shown  on  Plate  IX  are  those  for  one 
lantern;  the  total  number  of  panes  that  will  be  required  are  those  for lanterns. 

INSPECTION. — The  glass  will  be  inspected  at  the  works  of  the  glass  benders,  who  must  afford  all  assistance 
necessary  to  perform  this  inspection.  Should  any  of  the  panes  show  that  they  are  not  up  to  the  requirements  of  the 
specifications,  they  will  be  rejected,  and  the  faulty  panes  must  be  promptly  replaced  by  others  acceptable  in  every 
respect  to  the  Government. 

WORKMANSHIP. — The  glass  must  be  the  product  of  the  most  skilled  workmanship;  the  panes  must  be  per- 
fectly clear,  and  their  edges  straight  and  smooth.  None  but  first-class  work  will  pass  inspection.  The  glass 
benders  must  properly  box  the  glass  before  shipment  to  the  contractors. 

ERECTION  AT  THE  SHOP.— The  lantern  is  to  be  completely  erected  at  the  shop  with  curtains,  glass,  etc., 
in  place  and  must  not  be  taken  down  until  inspected  and  marked  by  an  agent  of  the  Light-House  Board.  The 
marks  are  to  be  cut  in  by  a  chisel,  and  when  the  work  has  been  painted  they  are  to  be  duplicated  in  large  figures 
painted  on  with  white  lead. 


22 

MATERIAL  AND  WORKMANSHIP.— The  wrought  iron  to  be  used  for  the  lantern  must  be  free  from 
imperfections,  and  must  be  capable  of  bearing  a  tensile  strain  of  not  less  than  50,000  pounds  per  square  inch 
of  cross  section. 

All  castings  must  be  entirely  free  from  imperfections,  such  as  honeycomb,  blowholes,  etc.;  they  must  be 
straight,  out  of  wind,  and  must  have  a  clean  and  smootli  surface.  The  iron  in  the  castings  must  be  light  gray  in 
color,  close  grained,  and  of  such  quality  that  a  rough  bar  %  inch  square,  supported  at  points  12  inches  apart,  will 
break  under  a  load  of  not  less  than  930  pounds  applied  at  the  center. 

The  Light-House  Engineer  or  his  agent  may  test  specimens  of  the  iron  by  straining  or  breaking,  but  no  piece 
that  has  been  strained  and  possibly  crippled  shall  be  used  in  the  structure.  The  tests  referred  to  shall  be  at  the 
expense  of  the  contractor. 

The  bolt  heads  and  nuts  throughout  the  structure  are  to  be  hexagonal,  if  not  otherwise  specified.  The  screw 
threads  must  be  sharp  and  clean  and  the  bolts  of  proper  lengths. 

The  brass  must  contain  not  less  than  90  per  cent,  of  copper;  it  must  have  a  close  texture,  and  no  scrap  is  to 
be  used  in  the  alloy. 

The  bronze  should  be  of  a  good  tough  quality,  of  close  texture  and  capable  of  bearing  shock.  A  mixture  of 
83  copper,  15  tin,  1%  zinc,  and  !/2  lead  should  show  a  tensile  strength  of  30,000  to  35,000  pounds  per  square  inch. 

The  work  must  be  the  production  of  the  most  skilled  workmanship. 

OILING  AND  PAINTING. — After  the  metal  work  has  been  thoroughly  cleaned  by  the  removal  of  sand, 
rust,  etc.,  and  when  the  surfaces  are  perfectly  dry,  the  metal  work  is  to  receive  one  coat  of  linseed  oil,  applied  hot, 
and  two  coats  of  pure  red  lead,  ground  in  linseed  oil.  A  succeeding  coat  shall  not  be  applied  unless  the  one  pre- 
viously applied  has  become  perfectly  dry  and  hard. 

All  planed,  turned,  and  finished  surfaces  must  receive  before  shipment  a  coat  of  white  lead  and  tallow. 

< 

MISCELLANEOUS. — All  portions  of  the  work  must  be  thoroughly  inspected  before  painting,  and  the  con- 
tractor must  afford  to  the  Light-House  Engineer  or  his  agent  every  assistance  necessary  to  perform  this  inspection. 

The  contractor  will  furnish  to  the  Light-House  Engineer  a  list  of  the  exact  weights  of  all  the  pieces,  including 
the  glass.  He  must,  before  shipment,  box  all  bolts,  glass,  and  small  pieces  of  the  structure. 

If  any  omission  be  discovered,  either  in  the  drawings  or  in  the  specifications,  the  contractors  shall  not  take 
advantage  of  it,  but  will  refer  for  information  to  the  Light-House  Engineer,  the  right  to  order  any  details  to  be 
provided  without  additional  cost  to  the  Government,  should  it  become  evident  that  such  details  were  originally 
intended  or  that  they  will  be  essential  to  the  proper  construction  of  the  work,  being  reserved.  Full  explanations 
and  complete  detail  drawings  will  be  furnished  for  any  part  of  the  work  not  sufficiently  shown  or  understood. 

CARPENTER    WORK. 

Lumber  to  be  used  shall  be  best  quality  Oregon  pine  and  redwood,  well  seasoned  and  free  from  sap,  shakes, 
loose  knots,  or  other  defects.  All  to  be  dressed  on  all  surfaces. 

FLOOR  JOISTS. — Oregon  pine,  4  inches  by  4  inches,  spaced  1  foot  on  centers.  All  floor  joists  to  be  notched 
!/4  inch  where  resting  on  steel  beams. 

Over  partitions  of  living  rooms  fill  in  to  watch  room  floor  with  2  inch  by  4  inch  Oregon  pine.  Plate  XXIII, 
Fig.  14.  Wood  floors  to  be  Oregon  pine,  vertical  grained,  3  inches  tongued  and  grooved  to  finish  to  1%  inches 
thick,  blind-nailed,  hand-planed  smooth. 

SHEATHING. — It  must  be  understood  that  all  sheathing  is  to  be  arranged  in  panels  or  sections,  which  can 
be  removed  so  that  the  condition  of  the  ironwork  behind  it  may  at  any  time  be  inspected. 


23 

Oregon  pine  blocks  are  bolted  to  steel  parts,  nailing  strips  for  sheathing  to  rest  against  these,  and  be 
fastened  by  3-inch  brass  screws,  round-headed,  with  waahers.  Sheathing,  redwood  tongued  and  grooved,  V- 
grooves,  blind-nailed.  Plate  XXIV,  Figs.  1,  4,  6  and  7. 

Bedroom  and  closet  partitions  on  living  room  floor  to  be  l1/^  inches  by  4  inches  tongued  and  grooved  redwood, 
V  joint,  let  into  grooved  and  molded  2  inches  by  3  inches  redwood  at  top  and  bottom.  Plate  XXIII,  Figs.  14  and  15. 

Door  frames  3  inches  by  3  inches  redwood,  rabbeted  for  door  and  grooved  for  sheathing.  Plate  XXIII,  Figs.  1C 
and  18. 

Base  to  be  %  inch  by  6  inches  molded  redwood.     Plate  XXIV,  Fig.  1. 

Redwood  molding  at  ceiling  line.     Plate  XXIV,  Fig.  1. 

WINDOWS. — Windows  to  be  of  the  number,  forms  and  dimensions  shown  on  the  elevations,  plans  and 
details.  Plates  II,  III,  VI,  XIX,  XX,  XXIV. 

FRAMES. — 1%-inch  Oregon  pine  pulley  stiles;  pulleys  21/4  inches  diameter;  all  parts  of  pulleys  brass.  Head 
of  frame  2  inches  thick,  parting  strip  %  inch  thick,  sills  redwood,  3  inches  thick;  inside  stop  redwood,  !/2  incn 
thick.  All  frames  to  be  secured  in  place  with  brass  screws  at  sill  and  two  %-inch  bolts  on  each  side  of  frame 
and  two  through  each  head.  Plate  XX,  Figs.  5,  6  and  9,  and  Plate  XXIV,  Fig.  6. 

Sash  for  all  windows  to  be  mill  made  of  No.  1  seasoned  sugar  pine,  2~y±  -inches  thick,  and  divided  as  shown  on 
elevations. 

Glass  in  all  windows  to  be  plate,  i/£  inch  thick,  all  to  be  properly  bedded  and  back-puttied  and  extra  well 
secured. 

All  sash  to  be  hung  with  some  form  of  brass  or  bronze  chain  to  be  approved  by  the  Light-House  Engineer, 
and  to  be  furnished  with  lifts  and  locks  of  same  material,  put  on  with  screws  of  similar  material. 

Sash  stops  to  be  secured  with  screws  with  washers. 

DOORS. — Doors  to  be  of  the  number,  forms  and  dimensions  shown  on  drawings.  All  to  be  mill-made  of 
selected  redwood,  with  panels  as  shown. 

Kitchen  door  and  watch  room  door  to  be  2l/±  inches  thick,  to  have  frames  of  clear  Oregon  pine  2%  inches 
thick,  rabbeted  for  doors.  Frames  to  be  secured  with  three  %-inch  bolts  on  each  side  and  two  bolts  through  head. 

Kitchen  door  to  be  hung  with  three,  and  watch  room  door  with  two  5  inch  by  5  inch  brass,  loose-pin  butts  and 
furnished  with  4  inch  by  4  inch  brass  mortise  locks,  with  escutcheons  and  keys  each,  all  of  brass. 

Closet  doors  to  be  hung  with  4  inch  by  4  inch  brass,  loose-pin  butts  and  furnished  with  same  hardware 
mentioned  ahove. 

Provide  approved  transom  openers  of  brass  for  all  transoms. 

All  hardware  to  be  put  on  with  brass  screws.  All  building  hardware  to  be  approved  by  the  Light-House 
Engineer. 

Thresholds  for  inside  doors  to  be  molded  of  oak  or  ash. 

All  windows  and  outside  doors  to  be  provided  with  outside  shutters  as  described  under  Steel  Work. 

Casings  for  all  window  and  door  openings  throughout  %  inch  thick,  of  selected  vertical-grained  redwood, 
molded,  as  shown  on  drawings,  and  strongly  secured  in  place  with  brass  screws. 

All  casings,  sheathing  on  walls,  and  moldings  to  be  secured  in  place  with  brass  screws,  so  as  to  admit  of 
easy  removal  for  the  purpose  of  exposing  the  steel  work  for  inspection. 

Kitchen  cupboards  and  lockers  to  be  as  detailed  on  Plate  XXIII. 

Sink  to  have  l^s-inch  sugar  pine  back  board  with  cap  molding  of  same  wood,  and  1%-inch  sugar  pine  drain 
board  and  countertop  to  adjoining  cupboard,  same  over  flour  bin  iy±  inch  thick. 

All  cupboards  and  lockers  to  be  fitted  up  with  drawers,  movable  shelves,  doors,  bins,  etc.,  of  selected  redwood, 
and  furnished  with  all  necessary  hinges,  drawer  pulls,  cupboard  catches,  etc.,  of  brass. 

All  glass  in  doors  of  cupboards  and  tool  case  in  engine  room  to  be  selected  21-ounce  glass. 


24 

Lockers,  desk  and  seats  in  watch  room  to  be  of  redwood.     Seat  to  have  drawers  in  front,   with  curved  face, 
and  to  have  back  to  radius  of  wall  and  neatly  fitted  around  projecting  wall  finish. 
Furnish  twelve  brass  screw  hooks  under  sink. 

Furnish  two  dozen  cast  bronze  clothes-hooks,  314  inches  long  for  bedroom  closets. 
Bedroom  lockers  over  closets  to  have  redwood  doors,  with  brass  hinges  and  catches,  and  movable  shelf  behind. 

WATER  CLOSET  in  basement  to  have  step  up  from  floor  of  1%-inch  Oregon  pine,  on  2  inch  by  4  inch 
Oregon  pine  framing,  and  to  have  %  inch  by  4  inch  tongued  and  grooved  V-joint  redwood  partitions.  Door  to 
same  to  be  114  inches  thick  with  long  panel  of  open  work,  louvre  pattern  slats;  to  have  brass  hinges  and  brass 
slide  bolt  on  inside. 

PAINTING. — Pulley  stiles  to  be  given  two  coats  of  light  brown  oil.  All  interior  woodwork,  sheathing, 
casings,  floor  joists  and  under  side  of  floors  to  be  well  sand-papered  and  to  receive  two  coats  of  white  shellac, 
alcohol  and  varnish,  each  coat  when  dry  and  hard  to  be  rubbed  down  with  pumice  stone  and  then  finished  with 
hard  oil  finish.  The  thresholds  to  receive  three  coats  of  boiled  linseed  oil.  The  exterior  of  the  door  and  window 
frames  to  be  painted  white.  Protect  the  floor  from  all  stains  during  the  painting,  and  clean  off  all  stains  or  spots 
from  the  windows  on  completion. 

TIME.— The  actual  work  of  preparing  the  material  for  this  structure  must  be  commenced  in  the  shops  of 
the  contractor  within  thirty  days  from  the  date  of  notification  of  approval  of  the  contract  by  the  Secretary  of 
Commerce  and  Labor,  and  must  from  that  date  be  pushed  rapidly  to  completion;  and  the  work  of  erection  upon 
the  concrete  base  must  be  commenced  within  fifteen  days  from  the  date  of  notification  that  the  same  is  ready 
to  receive  its  superstructure;  provided,  that  if  the  contractor  so  desires,  four  calendar  months  shall  have  elapsed 
since  the  date  of  said  notification  of  the  approval  of  this  contract.  After  the  work  of  erection  on  the  concrete  base 
has  been  commenced  it  must  be  pushed  to  completion  as  rapidly  as  the  conditions  of  wind  and  weather  will  permit. 

PAYMENTS. — The  work  will  be  paid  for  in  two  payments  of  50  per  centum  each  of  the  contract  price, 
provided  that  from  the  first  payment  20  per  centum  shall  be  deducted  and  retained  until  the  final  completion 
of  all  the  work  required  by  the  contract  to  the  satisfaction  of  the  Light-House  Engineer.  The  first  payment 
shall  be  made  when  the  frame  work  and  walls,  including  the  lantern,  and  the  stairs,  shall  have  been  assembled, 
and  inspected  in  the  shops  of  the  contractor,  marked  and  made  ready  for  transportation,  as  required  by  these 
specifications.  This  material  will  then  become  the  property  of  the  United  States,  but  will  remain  in  the  custody 
of  the  contractor,  who  will  be  held  responsible  for  its  safe-keeping,  transportation,  and  final  erection  upon  its 
concrete  base,  all  at  his  own  expense. 

The  second  payment  will  be  made,  including  the  retained  percentage  from  the  first  payment,  when  all  the 
work  contemplated  by  this  contract  shall  have  been  entirely  completed  to  the  satisfaction  of  the  Light-House 
Engineer. 


INSTRUCTIONS  TO   BIDDERS. 


N.  B. — Failure  to  comply  with  these  instructions  renders  the  bid  informal  and  liable  to  be  rejected. 


1.     All  bids  must  be  made  upon  the  printed  form  annexed  hereto. 

2     Each  bid  must  state  the  sum  for  which  the  entire  work,  as  shown  on  the  drawings  and  described  in  the 
specifications,  will  be  completed. 

3.  The  bidder's  place  of  residence,  with  county  and  State,  should  be  given  after  his  signature,  which  must 
be  written  in  full. 

4.  Anyone  signing  a  bid  as  the  agent  of  another,  or   of   others,   should   file   with   it   legal   evidence   of   his 
authority  to  do  so. 

5.  When  firms  bid,  the  firm  name  and  the  full  name  of  each  member  thereof  should  be   written   at  the 
beginning  of  the  bid;  for  instance,  "  Smith,  Brown  &  Co.,  of  the  City  of  New  York,  a  firm  composed  of  John  S. 
Smith,  Charles  B.  Brown,  and  John  W.  Robinson."     The  bid  should  be  signed  in  the  firm  name  without  a  seal. 
When  corporations  bid,  the  bid  should  be  signed  with  the  corporate  name  by  some  person  duly  authorized  to  do 
so  (evidence  of  whose  authority  should  be  appended),  and  sealed  with  the  corporate  seal. 

6.  Bidders  should  satisfy  the  United  States  of  their  ability  to  furnish  the  material  and  perform  the  work 
for  which  they  bid. 

7.  Reasonable  grounds  for  supposing  that  any  bidder  is  interested  in  more  than  one  bid  for  the  same  item  will 
cause  the  rejection  of  all  bids  in  which  he  is  interested. 

8.  Bids  submitted  by  different  members  of  the  same  firm  or  copartnership  will  not  be  considered. 

9.  The  right  is  reserved  to  reject  any  or  all  bids,  and  to  waive  any  defects. 

10.  All  bids  must  be  enclosed  in  an  envelope  endorsed,  "  Proposal  for  Steel  Superstructure  of  Light-Station  on 
Mile  Rock,  San  Francisco  Harbor,"  and  then  enclosed  in  another  envelope  and  directed  to  the  "  Engineer  Twelfth 
Light-House  District,  Room  91,  Flood  Building,  San  Francisco,  Cal." 

11.  All  bids  will  be  publicly  opened  at  the  time  specified  in  the  advertisement.     Bidders  are  invited  to  be 
present  and  witness  the  opening  of  the  bids. 

12.  The  form  of  contract  to  be  entered  into  may  be  seen  at  this  office.     Bidders  are   to  be  understood  as 
accepting  the  terms  and  conditions  contained  in  such  form  of  contract. 

13.  The  plans  and  specifications,  together  with  these  instructions,  will  form  part  of  the  contract. 

14.  Should  the  bidder  to  whom  the  contract  may  be  awarded  fail  to  enter  into  contract  within  ten  days  after 
notice  has  been  given  him  that  his  bid  has  been  accepted,  he  will  be  considered  a  defaulting  contractor,   and 
recommendation  will  be  made  to  the  Secretary  of  Commerce  and  Labor  that  hereafter  no   proposal  of  his  be 
considered. 

15.  A  bond,  with  one  corporate  surety  or  with  two  individual  sureties,  in  the  sum  of  $ will 

be  required  for  the  faithful  performance  of  the  contract.     Each  surety  will  be  required  to  qualify  in  double  the 
amount  of  the  bond. 

(25) 


26 

16.  A  firm  will  not  be  accepted  as  a  surety,  nor  will  a  partner  be  accepted  as  a  surety  for  a  copartner,  or  for 
a  firm  of  which  he  is  a  member.     An  officer  of  a  corporation  will  not  be  accepted  as  surety  for  such  corporation. 
In  no  case  will  a  married  woman  be  accepted  as  a  surety. 

17.  No  bid  will  be  accepted  or  contract  entered  into  until  approved  by  the  Light-House  Board. 

18.  Transfers  of  contracts,  or  of  interests  in  contracts,  are  prohibited  by  law. 

19.  Payment  will  be  made  as  specified. 

20.  The  work  must  be  completed  and  delivered  as  specified. 

21.  No  proposal  will  be  considered  unless  accompanied  by  a  guaranty  in  manner  and  form  as  directed  in  these 
instructions. 

22.  All  bids  and  guaranties  must  be  made  in  duplicate,  upon  printed  forms  to  be  obtained  at  this  office. 

23.  The  guaranty  attached  to  each  copy  of  the  bid  must  be  signed  by  two  responsible  guarantors,   to   be 
certified  as  good  and  sufficient  guarantors  by  a  judge  or   clerk  of   United    States   court,    United   States    district 
attorney,  United  States  commissioner,  postmaster,   or  judge  or  clerk  of  a  State  court  of  record,  with  the  seal  of 
said  court  attached,  or  by  one  guaranty  or  surety  company  duly  authorized  in  accordance  with  the  provisions  of 
an  act  of  Congress  approved  August  13,  1894. 

24.  Each   guarantor   must  justify   in   the   sum   of  twenty   (20)   per  cent   of  the   amount  of   the  bid.     The 
liability  of  the  guarantors  and  the  bidder  is  expressed  in  the  guaranty  attached  to  the  bid. 


[Before  filling  out  this  bid  the  instructions  to  bidders  should  be  carefully  read.] 

B  D. 


(DATE:)... 


We  (or  I), 


_ _ _ _ _ of  the 

State  of  ... 


engaged  in  business  under  the  name  and  style  of 

hereby  agree  to  furnish  all  the  material  and  labor  necessary  to  completely  construct  in  accordance  with  the  accom- 
panying advertisement,  instructions  to  bidders,  specifications  and  drawings,  the  superstructure  of  the  light  and 
fog-signal  station  to  be  erected  upon  Mile  Rock,  at  the  entrance  to  San  Francisco  Harbor,  California,  and  to  do 
all  things  that  may  be  required  by  the  contract  to  be  entered  into,  and  of  which  said  specifications  and  drawings 


are  to  form  a  part,  for  the  sum  of 

dollars  ($ ~loo~)- 

We  (or  I)  make  this  proposal  with  a  full  knowledge  of  the  kind,  quality  and  quantity  of  the  material  and 
articles  required,  and  the  work  to  be  done,  and  if  it  be  accepted  will,  after  receiving  written  notice  of  such 
acceptance,  enter  into  contract  within  the  time  designated  in  the  specifications,  with  good  and  sufficient  sureties 
for  the  faithful  performance  thereof. 


(Signature:) 

(Address:)... 
(Signature:) 

(Address:)... 


To  the  LIGHT-HOUSE  ENGINEER, 

Room  91,  Flood  Building,  San  Francisco,  Gal. 

(27) 


GUARANTY  TO  ACCOMPANY  PROPOSAL. 


We,  

of _ in  the  County  of _ 

and  State  of and of 

in  the  County  of and  State  of 

hereby  undertake  that  if  the  bid  of 

herewith  accompanying,  dated 

for  furnishing ~ _ _ 


be  accepted  as  to  any  or  all  of  the  items  of  supplies,  materials,  and  services  proposed  to  be  furnished  thereby,  or 
as  to  any  portion  of  the  same  within  sixty  days  from  the  date  of  the  opening  of  proposals  therefor,  the  said 

bidder will,  within  ten  days 

after  notice  of  such  acceptance,  enter  into  a  contract  with  the  proper  officer  of  the  United  States  to  furnish  such 
articles  of  supplies  and  materials  and  such  services  of  those  proposed  to  be  furnished  by  said  bid  as  dial!  be 
accepted,  at  the  prices  offered  by  said  bid  and  in  accordance  with  the  terms  and  conditions  of  the  advertisement 
inviting  said  proposals,  and  will  give  bond  with  good  and  sufficient  sureties  for  the  faithful  and  proper  fulfillment 
of  such  contract.  And  we  bind  ourselves,  our  heirs,  executors,  and  administrators,  jointly  and  severally,  to  pay  to 
the  United  States,  in  case  the  said  bidder  shall  fail  to  enter  into  such  contract  or  give  such  bond  within  ten  days 
after  said  notice  of  acceptance,  the  difference  in  money  between  the  amount  of  the  bid  of  said  bidder  on  the 
articles  or  services  so  accepted  and  the  amount  for  which  the  proper  officer  of  the  United  States  may  contract  with 
another  party  to  furnish  said  articles  and  services,  if  the  latter  amount  be  in  excess  of  the  former. 

Given  under  our  hands  and  seals  this day  of 


In  presence  of — 

a-;  to 

as  to 


*  Affix  adhesive  seal. 

(29) 


STATE  OF 

County  of 

I, ,  one  of  the  guarantors  named  in  the  foregoing  guaranty,  do 

swear  that  I  am  pecuniarily  worth  the  sum  of... _ dollars 

over  and  above  all  my  debts  and  liabilities. 


Subscribed  and  sworn  to  before  me  this day  of. 

at 


STATE  OF _ _ 

County  of. 

I,  ,  one  of  the  guarantors  named  in  the  foregoing  guaranty,  do 

swear  that  I  am  pecuniarily  worth  the  sum  of dollar? 

over  and  above  all  my  debts  and  liabilities. 


Subscribed  and  sworn  to  before  me  this day  of.. 

at 


i 


I,  2 do  hereby  certify  that 

and  : ,  the  guarantor      above  named,.. 


personally  known  to  me,  and  that,  to  the  best  of  my  knowledge  and  belief,  3 is  pecuniarily  worth,  over 

and  above  all  his  debts  and  liabilities,  the  sum  stated  in  the  accompanying  affidavit  subscribed  by  him. 


I,  ,  do  hereby  certify  that. 


,  the  guarantor  above  named,  is  personally  known  to  me,  and  that,  to  the  best  of  my 

knowledge  and  belief,  he  is  pecuniarily   worth,  over  and  above  all  his  debts  and  liabilities,  the  sum  stated  in  the 
accompanying  affidavit  subscribed  by  him. 


'The  oath  to  be  taken  before  a  notary  public  or  some  other  officer  having  general  authority  to  administer  oaths. 
If  the  officer  has  an  official  seal  .it  must  be  affixed',  otherwise  the  proper  certificate  as  to  his  official  character  must  be  furnished. 

2  This  certificate  to  be  by  a  judge  or  clerk  of  a  United  States  court,  a  United  States  district  attorney,  United  States 
commissioner,  postmaster,  or  a  judge  or  clerk  of  a  State  court  of  record  with  the  seal  of  said  court  attached.  If  the  official 
can  make  the  certificate  as  to  both  sureties,  it  will  not  be  necessary  to  fill  out  the  next  forth  below. 

*  He  or  each. 

(31) 


CONTRACT. 


N.  B. — In  executing  this  contract  the  directions  on  the  last  page  should  be  carefully  followed. 


1  HrticleS    Of    Horeement,    made  and  entered  into  between  

2  .. 


3   :. 

4   

• 

5 

6 

7  of  the  first  part,  and  THOS.  H.  HANDBUKY,  Lieutenant-Colonel,  Corps  of  Engineers,  U.  S.  A.,  Engineer  Twelfth 

8  Light-House  District,  acting  for  and  in  behalf  of  the  United  States  of  America,  of  the  second  part,  witnesseth: 

9  That  the  party  of  the  first  part,  in  consideration  of  the  matters  hereinafter  referred  to  and  set  out,  and  of  the 

10  specifications  and  drawings  attached  hereto,  and  forming  a  part  of  this  contract,  covenants  and  agrees,  to  and 

11  with  the  party  of  the  second   part,   to  furnish  all   the  labor  and  materials  necessary  for,  and  to   construct  the 

12  superstructure  of  the  light  and  fog-signal  station  to  be  erected  on  Mile  Kock,  at  the  entrance  to  San  Francisco 

13  Harbor,  Cal.,  to  commence  the  work  and  push  forward  the  same  to  completion,  all  as  more  particularly  set  forth  in 

14  the  specifications  and  drawings  above  referred  to. 

15  And  the  said  party  of  the  first  part  further  agrees  to  conform  in  every  particular  to  the  stipulations  and 

16  conditions  stated  in  this  contract,  and  to  the  specifications  and  drawings  for  the  work,  hereto  annexed,  which  are 

17  to  be  considered  as  a  part  of  the  same,  and  to  be  governed  in  all  matters  regarding  said  work  and  the  materials 

18  used  therein  by  the  said  party  of  the  second  part,  or  the  authorized  agent  or  agents  thereof;  and  that  the  said 

19  work  and  materials  used  therein  shall  be  subjected  to  a  rigid  inspection  to  be  made  by  the  party  of  the  second 

20  part,  or  its  agent  or  agents,  and  that  this  inspection  shall  be  final. 

(33) 


34 

21  And  the  said  party  of  the  second  part  covenants  and   agrees  to   pay   the   party    of   the   first    part,    in    full 

22  payment   for  said   material   and    labor,   and   the   erection  of  said  structure  as  follows: 

23  The  work  will  be  paid  for  in  two  payments  of  50  per  centum  each  of  the  contract  price,  provided  that  from 

24  the  first  payment  20  per  centum  shall  be  deducted  and  retained  until  the  final  completion  of  all  the  work  required 

25  by  the  contract,  to   the  satisfaction  of   the   Light-House   Kngineer.     The  first  payment  shall  b"e  made  when  the 

26  frame  work  and  walls,  including  the  lantern,  and  the  stairs,  shall  have  been  assembled  and  inspected  in  the  shops 

27  of  the  party  of  the  first  part,  marked  and  made  ready  for  transportation,  as  required  by  the  specifications  above 

28  referred  to.     This  material  will  then  become  the  property  of  the  United  States,  but  will  remain  in  the  custody  of 

29  the  party  of  the  first  part,  who  will  be  responsible  for  its  safe-keeping,  transportation,  and  final  erection  upon  its 

30  concrete  base,  all  at  his  own  expense. 

31  The  second  payment  will  be  made,  including  the  retained  percentage  from  the  first  payment,  when  all  the 

32  work  contemplated  by  this  contract  shall  have  been  entirely  completed  to  the  satisfaction  of  the  Light-House 

33  Engineer. 

34  And  it  is  expressly  understood  and  agreed  that,  as  each  payment  hereinbefore  stipulated  is  made,  possession  of 

35  the  material,  labor  and  articles  which  are  paid  for  by  such  payment  shall  pass  to,  and  the  title  thereto  shall   be 

36  vested  in  the  United  States. 

37  If,  in  any  event,  the  party  of  the  first  part  shall  delay  or  fail  to  commence  the  delivery  of  the  material  or 

38  the  performance  of  the  work  specified  herein,  or  shall,  in  the  judgment  of  the  officer  of  the  Light-House  Board 

39  in  charge,  fail  to  prosecute  faithfully  and  diligently  the  work  in  accordance  with  the  specifications  and  require- 

40  ments  of  this  contract,  then,  in  either  case,  the  party  of  the  second  part,  or  his  successor,  shall  have  power,  with 

41  the  sanction  of  the  Light-House  Board,  to  annul  this  contract  by  giving  notice  in  writing  to  that  effect  to  the  party 

42  (or  parties,  or  either  of  them)  of  the  first  part;  and  the  party  of  the  second  part  shall  he  thereupon  authorized,  if 

43  an   immediate   performance   of  the   work   or   delivery   of  the  materials  be  in  his  opinion  required  by  the  public 

44  exigency,  to  proceed  to  provide  for  the  same  by  open  purchase  or  contract,  as  prescribed  in  section   3709  of  the 

45  Eevised  Statutes  of  the  United  States;  but  the  party  of  the  first  part  shall  remain  liable  to  the  party  of  the  second 

46  part  for  the  damages  occasioned  to  him  by  the  said  noncompliance,  delay,  or  negligence:    Provided,  however,  That 

47  if  the  party  (or  parties)  of  the  first  part  shall  by  freshets,  ice,  or  other  force  or  violence  of  the  elements,  and  by 

48  no  fault  of  his  or  their  own,  be  prevented  either  from  commencing  or  completing  the   work,   or  delivering  the 

49  materials  at  the  time  agreed  upon  in  this  contract,  such  additional  time  may,  in  writing,  be  allowed  him  or  them 


35 

50  for  such  commencement  or  completion  as,  in  the  judgment  of  the  party  of  the  second  part,  or  his  successor,  shall 

51  he  just  and  reasonable,  any  additional  expense  incurred  by  the  United  States  on  account  of  inspection  or  otherwise 

52  during  the  period  of  extension  to  be  deducted  from  the  contract  price  of  the  work;  but  such  allowance  and  extension 

53  shall  in  no  manner  affect  the  rights  or  obligations  of  the  parties  under  this  contract,  but  .the  same  shall  subsist, 

54  take  effect,  and  be  enforceable  precisely  as  if  the  new  date  for  such  commencement  or  completion  had  been  the  date 

55  originally  herein  agreed  upon. 

56  It  is  further  understood  and  agreed  that  in  case  of  failure  on  the  part  of  the  party  of  the  first  part  to  complete 

57  this  contract  as  specified  and  agreed  upon,  that  the  said  United  States  shall  have  the  right  to  recover  any  or  all 

58  damages  incurred  by  reason  of  said  failure  by  the  party  of  the  first  part,  and  shall  also  have  the  right  to  recover 

59  whatever  sums  may  be  expended  by  the  party  of  the  second  part  in  completing  the  said  contract  in  excess  of  the 

60  price  herein  stipulated  to  be  paid  to  the  party  of  the  first  part  for  completing  the  same. 

61  And  it  is  further  stipulated  and  agreed  that  no  Member  of  or  Delegate  to  Congress  shall  be  admitted  to  any 

62  share  or  part  of  this  contract  or  agreement,  or  to  any  benefit  to  arise  therefrom;  and  this  contract  shall  be  in  all 

63  its  parts  subject  to  the  terms  and  conditions  of  sections  3739,  3740,  and  3742  of  the  Eevised  Statutes  of  the  United 

64  States. 

65  And  it  is  also  expressly  understood  and  provided  that  nothing  herein  contained  shall  be  so  construed  as  to 

66  authorize  any  officer  or  agent  of  the  United  States  to  bind  the   United   States  by   contract  bevond  the  amount 

67  appropriated  by  Congress. 

68  And  it  is  further  covenanted  and  agreed  that  no  member  of  the  Light-House  Board,  inspector,   lightkeeper, 

69  or  other  person  in  any  manner  connected  with  the  Light-House  Service,  shall  be  interested,  either  directly  or 

70  indirectly,  in  this  contract,  or  be  entitled  to  any  benefit  to  arise  therefrom;  and  for  any  violation  of  this  covenant 

71  and  agreement  the  party  of  the  first  part  shall  forfeit  all  moneys  which  may  become  due  under  this  contract. 

72  Provided,  also,  that  it  is  expressly  understood  and  agreed  that  this  contract,  or  any  part  thereof,  shall  not  be 

73  sublet  nor  assigned,  but  that  it  shall  be  well  and  truly  carried  out  and  fulfilled  in  good  faith  by  the  above-recited 

74  party  of  the  first  part,  and  that  payment  on  account  thereof  shall  be  made  to  the  aforesaid  party  of  the  first  part, 

75  successors,  heirs,  executors,  or  administrators. 

76  And  provided  further,  that  this  contract  shall  not  be  binding  upon  the  United  States  until  it  shall  have  been 

77  approved  by  the  Light-House  Board. . 


36 

78  And   for  the   true  and  faithful   performance   of   all    and   singular   the   covenants,    articles,    and   agreements: 

79  hereinbefore  particularly  set  forth,  the  subscribers  hereunto  bind  themselves,  jointly  and  severally,  their  and  each 

80  of  their  successors,  heirs,  executors,  and  administrators. 

81  Thus  covenanted,  made,  and  agreed  by  the  said  parties,  this day  of 

82  anno  Domini  one  thousand  nine  hundred  and  four,  as  witness  their  hands. 

83  Signed  and  delivered  in  presence  of — 


gg 

H 
GO 

CO       — 

H 


NOTE. — The  bondsmen  must  not  sign  the  contract. 


BOND  WITH  CONTRACT. 


KNOW   ALL   MEN   BY   THESE   PRESENTS,    That   WC.. 


,  as  sureties,  are  held  and  firmly  bound  unto  the  United  States  of  America  in 

the  sum  of - dollars 

($ ),  lawful  money  of  the  United  States,  to  be  paid  to  the  said  United  States,  or  its  authorized 

agent,  as  liquidated  damages;  for  which  payment,  well  and  truly  to  be  made,  we,  and  each  of  us  do  bind  ourselves, 
and  each  of  our  successors,  heirs,  executors,  and  administrators,  jointly  and  severally,  firmly  by  these  presents. 

Sealed  with  our  seals,  dated  this day  of. 


The  condition  of  the  above  obligation  is  such  that  if  the  said.. 


successors,   heirs,   executors  or  administrators,   shall   well  and   truly   execute   the   contract  hereto   annexed   which 
ha, entered  into  with  Thos.  H.  Handbury,  Lieutenant-Colonel,  Corps  of  Engineers, 

U.  S.  A.,  Engineer  Twelfth  Light-House  District,  for  and  in  behalf  of  the  United  States,  by  which 

(37) 


38 

covenant  and  agree  to  furnish  all  the  labor  and  material  necessary  to  complete!}'  construct  the  superstructure  of 
the  light  and  fog-signal  station  to  be  erected  upon  Mile  Rock,  entrance  to  San  Francisco  Harbor,  California, 
according  to  all  the  conditions  of  the  said  contract,  and  shall  promptly  make  payments  to  all  persons  supplying 

said labor  and  materials  in  the  prosecution  of  the  work  provided  for  in  such 

contract,  then  this  obligation  to  be  void;  otherwise  to  remain  in  full  force  and  virtue. 
Signed  and  sealed  in  the  presence  of — • 


[L.  s.] 

_                                                                                             PL  si 

m 

w 
GO 

00 
H 

(-» 

L                     J 

J                                                                                                             FT,,  s.1 

1 

rL  si 

L                 J 

_                                                                                                                                                       [L.  s.] 

NOTES. 

If  the  contract  be  made  by  an  incorporated  company,  the  corporate  seal  should  be  impressed  on,  or  affixed  to,  each  copy  of 
both  the  contract  and  the  bond,  and  a  certificate,  under  the  corporate  seal  of  the  company,  showing  that  the  person  who  signs  in  its 
behalf  is,  at  the  time  of  signing,  the  officer  he  purports  to  be,  and  as  such  is  duly  authorized  to  sign  sealed  instruments  in  behalf 
of  the  company,  should  be  affixed  to  at  least  one  copy  of  the  contract. 

All  signatures  of  sureties  should  have  affixed  to  them  adhesive  seals,  and  their  names  should  be  written  in  full. 

The  residence  of  sureties  and  witnesses  should  be  given. 

The  bondsmen  must  qualify  in  the  forms  following. 

The  bondsmen  must  not  sign  the  contract. 


BONDSMEN'S  OATHS. 

STATE  OF 


.-ss. 
County  of... 

_ _ _ — _ ,  being  duly  sworn,  deposes  and  says  that  he  resides  at 

No _ street,  in  the _ of _ 

in  the  State  of - - - — ;  and  that  the  value  of  his  property,  over  and  above  all 

debts  and  liabilities  incurred  by  him,  is  over dollars 

($ „.),  and  that  he  is  fully  responsible  for  the  amount  of  his  obligation  in  the  foregoing 

bond  by  him  executed. 


Sworn  to  and  subscribed  this day  of. - ,  190 ,  before  me. 

(Signature  of  officer  administering  oath,  I  r          n 

with  seal    if  anv  }  (  ....... ...™..™.™..~.....-...- ......._..«..........................._.................. I  I,.  S.  I 


STATE  OF 

County  of 

_ _ _ ,  being  duly  sworn,  deposes  and  says  that  he  resides  at 

No street,  in  the of _ 

in  the  State  of _ - - ;  and  that  the  value  of  his  property,  over  and  above  all 

debts  and  liabilities  incurred  by  him,  is  over _ dollars 

($_ ),  and  that  he  is  fully  responsible  for  the  amount  of  his  obligation  in  the  foregoing 

bond  by  him  executed. 

( Signature   of  surety : ) - - 

Sworn  to  and  subscribed  this day  of. — _ ,  190 ,  before  me. 

(Signature  of  officer  administering  oath,  I  r          -i 

with  seal,  if  any.)  J  LL-  S-J 


NOTES. 

If  the  affidavits  of  the  sureties  be  made  before   a  notary  public,   his   seal   should  be   impressed  ;   if  made  before   a   justice 
of  the  peace,  the  usual  certificate  attesting  the  official  character  of  the  magistrate  should  be  appended. 
Each  surety  will  qualify  in  double  the  amount  of  the  bond. 

(39) 


Form  of  Justification  by  Corporate  Surety. 


[  This  form  of  justification  is  to  be  used  when  a  guaranty  or  surety  company  is  upon  the  bond  of  a.  contractor,  inntead 

of  two  individual  sureties.] 


STATE  OF.. 

'•  ss. 
County  of 

Personally  appeared  before  me, OB 

this day  of one  thousand  nine  hundred  and  four,  known  to  me  to  be  the 

_ _ _ :. of  the 

the  corporation  described  in  and  which  executed  the  annexed 

bond  of as  surety  thereon,  and  who,  being  by  me  duly  sworn, 

deposes  and  says  that  he  resides  at „ in  the  State  of 

that  he  is  the of  the  said 

_ Company,  and  knows  the  corporate  seal  thereof;  that  said  company  is  duly  and  legally 

incorporated  under  the  laws  of  the  State  of _ ;  that  said  company  has  complied 

with  the  provisions  of  the  Act  of  Congress  of  August  13,  1894,  allowing  certain  corporations  to  be  accepted  as 

surety  on  bonds;  that  the  seal  affixed  to  the  annexed  bond  of _ - 


is  the  co  rporate  seal  of  the  said Company 

and  was  thereto  affixed  by  order  and  authority  of  the  board  of  directors  of  said  company;  and  that  he  signed  his 

name  thereto  by  like  order  and  authority  as — of  said  company; 

and  that  he  is  acquainted  with _ _ and  knows 

him  to  be  the of  said  company;  and  that  the  signature  of  said 

_ subscribed  to  said  bond  is  in  the  genuine  handwriting 

of  said and  was  thereto  subscribed  by  order  and  authority 

of  said  board  of  directors,  and  in  the  presence  of  said  deponent;  and  that  the  assets  of  said  company,  unincumbered 
and  liable  to  execution,  exceed  its  claims,  debts,  and  liabilities  of  every  nature   whatsoever,  by  more  .than  the 

sum  of •. dollars  ($ ). 


Deponent  further  says  that „ residing 

(40) 


41 

at in  the  State  of - lias  been  duly  appointed.  as 

the  agent  of  said  company  to  accept  service  of  process  against  said  company  in  the judicial 

district  of. _ _ _ and  is  authorized  to  enter  an  appearance  in  behalf  of  said 

company  in  any  action,  suit,  or  proceeding  brought  against  it  in  said  judicial  district. 


Sworn  to,  acknowledged  before  me,  and  subscribed  in  my  presence  this day  of 

._ _ _ 190 


NOTES. 

If  the  above  affidavit  be  made  before  a    notary  public,  his  seal  should  be  impressed;  if  made  before  a  justice  of  the  peace, 
the  usual  certificate  attesting  the  official  character  of  the  magistrate  should  be  appended. 
The  surety  company  will  qualify  in  double  the  amount  of  the  bond. 


CERTIFICATE   OF   SOLVENCY. 


I  CERTIFY  that  I  have  made  due  and  diligent  personal  inquiry  as  to  the  ability  of  the  signers  of  the  foregoing 
bond,  and  am  satisfied  that  they  are  good  and  sufficient,  and  fully  responsible  for  the  sum  of „ 

„_ _ .       .       dollars  ($  1  each. 

™  '•"    / 


DATE: 190 


NOTES. 

The  surety's  certificate  of  solvency  must  be  signed  by  an  officer  of  the   Government  known  to  the   Department  of  Commerce 
and  Labor. 

This  form  need  not  be  used  when  a  guaranty  or  surety  company  is  upon  the  bond  of  a  contractor. 


(42) 


Directions  as  to  Execution  of   Contracts. 


1.  The  contract  papers  proper,   comprising  the   specifications,  drawings,  if  any,  contract,  bond,  bondsmen's 
oaths,  justification  by  corporate  surety — when  a  guaranty  or  surety  company  is  upon  the  bond  of  the  contractor, 
instead  of  two  individual  sureties — and  certificate  of  solvency,  should  be  made  in  quadruplicate,  and  each  copy 
should  be  the  exact  counterpart  of  the  others,  so  that  any  one  of  them  may  be  used  as  an  original. 

2.  Before   signatures  are  appended  to  the  papers,  all  dates  should  be  written  in,  and  all  remaining  blank 
spaces  ruled  out,  with  ink. 

3.  Interlineations  and  erasures  are  to  be  avoided  when  possible;  but  when   they  are  unavoidable,   either  in 
the  specifications,  the  contract,  or  the  bond,  they  should  be  noted,  word  by  word,  immediately  above  the  signature 
of  the  witnesses,  specifying  the  number  of  each  line  where  they  occur;  and  certificates  should  be  made  that  each 
specific  correction  or  alteration  was  made  before  the  contract  was  signed. 

4.  The  full  name  and  the  residence  of  each  signer  of  a  contract  and  bond  should  be  written  in  the  body  of 
the  contract  and  bond. 

5.  When  firms  contract,  the  name  of  the  firm  and  the  full  name  of  each  member  thereof  should  be  written  at 
the  beginning  of  the  contract;  for  instance,  "  Smith,  Brown  &  Co.,  of  the  city  of  New  York,  a  firm  composed  of 
John  S.   Smith,  Charles  B.  Brown,  and  John  W.  Eobinson."      The  contract  should  be  signed  in  the  firm  name 
without  seal.     The  bondsmen  must  not  sign  the  contract. 

6.  When  an  incorporated  company  enters  into  contract,  the  corporate  name  of  the  company  should  be  written 
at   the   beginning    of   the    contract   and   bond;    for  instance,  "  The    Smith    and    Brown    Dredging    Company,    a 
corporation  created  by  and  existing  under  the  laws  of  the  State  of  New  York,  of  the  city  of  New  York,  in  said 
State."     The  contract  and  bond  should  then  be  signed  with  the  corporate  name  by  a  person  duly  authorized  to  do 
so,  sealed  with  the  corporate  seal,  and  a  certificate,  under  the  corporate  seal  of  the  company,  showing  the  signer's 
authority  to  sign  sealed  instruments  in  its  behalf,  should  be  appended  to  one  copy  of  the  contract.     In  the  event 
that  the  corporation  has  no  corporate  seal,  a  seal  of  wax  or  wafer  should  be  affixed  to  the  bond  and  adopted  and 
used  for  the  time  being  as  the  seal  of  the  corporation,  and  the  fact  that  such  corporation  has  no  corporate  seal 
should  be  shown  by  affidavit  duly  made  before  a  notary  public,  whose  official  seal  should  be  affixed  thereto. 

7.  A  bond  for  the  faithful  performance  of  the  contract  will  be  required.     Seals  of  wax  or  wafer  should  be 
affixed  to  the  signatures  of  principals  and  sureties,  if  individuals;  and  corporate  seals  should  be  affixed  as  required 
by  Rule  G.     The  bond  should  bear  the  same  date,  or  a  date  subsequent  to  that  of  the  contract. 

8.  An  individual  or  individuals,  doing  business  under  a  firm  name,  should  sign  the  bond  in  his,  or  their, 
individual  names.    Firm  names  should  not  be  signed  to  the  bond. 

9.  Each  signature  to  a  contract  or  bond  should  be  made  in  the  presence  of  at  least  one  witness,  who  should 
sign  his  name  as  a  witness. 

(43) 


44 

10.  A  firm  will  not  be  accepted  as  a  surety,  nor  will  a  partner  be  accepted  as  a  surety  for  a  copartner,  nor 
for  a  firm  of  which  he  is  a  member.    An  officer  of  a  corporation  will  not  be  accepted  as  surety  for  such  corporation. 
In  no  case  will  a  married  woman  be  accepted  as  a  surety,  and  when  an  unmarried  woman  (widow  or  spinster)  is 
given  as  a  surety,  she  must  be  described  as  such  in  the  body  of  the  bond. 

11.  When  a  person  signs  a  contract  or  bond  as  the  agent  or  attorney  in  fact  of  another  person,  evidence  of  his 
authority  to  sign  the  same  should  be  furnished.     The  authority  to  execute  an  instrument  under  seal  should  itself 
be  under  seal,  and  it  should  also  be  duly  acknowledged  before  an  officer  empowered  to  take  acknowledgments. 

12.  There  must  be  not  less  than  two  individual  sureties,  but  one  corporate  surety  duly  qualified  under  the 
Act  of  Congress  of  August  13,  1894,  may  be  accepted  as  sole  surety.     The  contractor  and  sureties  should  sign 
(execute)  each  bond.     Each  member  of  a  firm  should  sign  the  bond  personally  or  by  attorney;  in  the  latter  case, 
a  certified  copy  of  the  power  of  attorney  under  which  the  signature  is  made  should  be  appended  to  the  contract. 
Each  surety  must  qualify  in  double  the  amount  of  the  bond.      This  direction  applies  to   corporate   as   well   as 
individual  sureties,  and  corporate  sureties  should  also  attach  to  each  bond  a  copy  of  the  last  statement  of  their 
assets  and  liabilities,  as  rendered  pursuant  to  Section  4  of  the  Act  of  Congress  of  August  13,  1894.     Each  surety 
should  make  and  sign  an  affidavit  of  the  amount  he  is  worth  over  and  above  all  debts  and  liabilities,  and  such 
exemptions  as  may  be  allowed  by  law.     Sureties,  other  than  corporate  sureties,  should  state  under  oath  that  they 
are  not  responsible  as  sureties  on  any  other  bond,  or,  if  so  liable,  the  amount  of  such  liability.    When  the  required 
oath  is  taken  before  a  justice  of  the  peace,  a  certificate  in  the  usual  form  should  be  appended,  attesting  his  official 
character.     This  inconvenience  can  be  avoided  by  having  the  oath  taken  before  a  notary  public,  in  which  case 
the  notarial  seal  must  be  affixed  or  impressed. 

13.  A  judge  or  clerk  of  a  United  States  court,  a  United  States  district  attorney,  United  States  commissioner, 
postmaster,  or  a  judge  or  clerk  of  a  State  court  of  record,  with  the  seal  of  said  court  attached,  should  certify  that 
the  sureties  are  sufficient  to  pay  the  penalty  of  the  bond,  and  except  in  the  case  of  a  judge  of  a  United  States  court, 
or  a  United  States  attorney,  if  the  person  certifying  has  no  seal,  his  official  character  should  be  duly  certified. 
The  foregoing  does  not  apply  to  corporate  sureties  who  have  complied  with  Eule  12  of  these  directions  relative 
to  evidence  of  their  ability  to  meet  double  the  entire  obligation  of  their  bond. 

14.  Corporate  sureties,  duly  qualified  w  do  business,  under  the  Act  of  Congress  of  August  13,  1894,  and  who 
have  filed  with  the  Solicitor  of  the  Department  of  Commerce  and  Labor  evidence  of  their  authority  to  do  business, 
from  the  Department  of  Justice,  need  not  furnish  a  certificate  of  such  authority  with  each  contract  on  which  they 
are  bondsmen. 

15.  When  contracts  and  bonds  have  been  thus  prepared,  and  signed  and  sealed  by  the  officer  making  them, 
in  behalf  of  the  United  States,  they  should  be  forwarded  to  the  Board  for  approval. 

16.  When  approved  by  the  Board  and  by  the  Secretary  of  Commerce  and  Labor,  two  copies  will  be  returned  to 
the  officer  making  the  contract,  one  for  delivery  to  the  contractor  and  the  other  for  file. 


\ 


RETURN 
TO 


MAIN  CIRCULATION 


FORM  NO.  DD6 


U.C. 


BERKELEY      RABIES 


UNIVERSITY   OP  CALIFO:   r.      . 

DEPARTMENT  OF  CIVIL  ENGINEERING 


re  375 


THE  UNIVERSITY  OF  CALIFORNIA  LIBRARY 


